path: root/debian/patches/05_port-openssl-1.1.0.patch

diff --git a/src/libstrongswan/plugins/openssl/openssl_crl.c b/src/libstrongswan/plugins/openssl/openssl_crl.c
index cb02c663ca0b..20bac6be57dc 100644
--- a/src/libstrongswan/plugins/openssl/openssl_crl.c
+++ b/src/libstrongswan/plugins/openssl/openssl_crl.c
@@ -46,6 +46,17 @@
 #include <collections/enumerator.h>
 #include <credentials/certificates/x509.h>
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+static inline void X509_CRL_get0_signature(ASN1_BIT_STRING **psig, X509_ALGOR **palg, const X509_CRL *crl) {
+	if (psig) { *psig = crl->signature; }
+	if (palg) { *palg = crl->sig_alg; }
+}
+#define X509_REVOKED_get0_serialNumber(r) ({ (r)->serialNumber; })
+#define X509_REVOKED_get0_revocationDate(r) ({ (r)->revocationDate; })
+#define X509_CRL_get0_extensions(c) ({ (c)->crl->extensions; })
+#define X509_ALGOR_get0(oid, ppt, ppv, alg) ({ *(oid) = (alg)->algorithm; })
+#endif
+
 typedef struct private_openssl_crl_t private_openssl_crl_t;
 
 /**
@@ -141,11 +152,13 @@ METHOD(enumerator_t, crl_enumerate, bool,
 		revoked = sk_X509_REVOKED_value(this->stack, this->i);
 		if (serial)
 		{
-			*serial = openssl_asn1_str2chunk(revoked->serialNumber);
+			*serial = openssl_asn1_str2chunk(
+									X509_REVOKED_get0_serialNumber(revoked));
 		}
 		if (date)
 		{
-			*date = openssl_asn1_to_time(revoked->revocationDate);
+			*date = openssl_asn1_to_time(
+									X509_REVOKED_get0_revocationDate(revoked));
 		}
 		if (reason)
 		{
@@ -231,6 +244,7 @@ METHOD(certificate_t, issued_by, bool,
 	chunk_t fingerprint, tbs;
 	public_key_t *key;
 	x509_t *x509;
+	ASN1_BIT_STRING *sig;
 	bool valid;
 
 	if (issuer->get_type(issuer) != CERT_X509)
@@ -266,9 +280,14 @@ METHOD(certificate_t, issued_by, bool,
 	{
 		return FALSE;
 	}
+	/* i2d_re_X509_CRL_tbs() was added with 1.1.0 when X509_CRL became opaque */
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+	tbs = openssl_i2chunk(re_X509_CRL_tbs, this->crl);
+#else
 	tbs = openssl_i2chunk(X509_CRL_INFO, this->crl->crl);
-	valid = key->verify(key, this->scheme, tbs,
-						openssl_asn1_str2chunk(this->crl->signature));
+#endif
+	X509_CRL_get0_signature(&sig, NULL, this->crl);
+	valid = key->verify(key, this->scheme, tbs, openssl_asn1_str2chunk(sig));
 	free(tbs.ptr);
 	key->destroy(key);
 	if (valid && scheme)
@@ -448,7 +467,7 @@ static bool parse_extensions(private_openssl_crl_t *this)
 	X509_EXTENSION *ext;
 	STACK_OF(X509_EXTENSION) *extensions;
 
-	extensions = this->crl->crl->extensions;
+	extensions = X509_CRL_get0_extensions(this->crl);
 	if (extensions)
 	{
 		num = sk_X509_EXTENSION_num(extensions);
@@ -494,6 +513,8 @@ static bool parse_extensions(private_openssl_crl_t *this)
 static bool parse_crl(private_openssl_crl_t *this)
 {
 	const unsigned char *ptr = this->encoding.ptr;
+	ASN1_OBJECT *oid;
+	X509_ALGOR *alg;
 
 	this->crl = d2i_X509_CRL(NULL, &ptr, this->encoding.len);
 	if (!this->crl)
@@ -501,14 +522,28 @@ static bool parse_crl(private_openssl_crl_t *this)
 		return FALSE;
 	}
 
+	X509_CRL_get0_signature(NULL, &alg, this->crl);
+	X509_ALGOR_get0(&oid, NULL, NULL, alg);
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 	if (!chunk_equals(
 			openssl_asn1_obj2chunk(this->crl->crl->sig_alg->algorithm),
 			openssl_asn1_obj2chunk(this->crl->sig_alg->algorithm)))
 	{
 		return FALSE;
 	}
-	this->scheme = signature_scheme_from_oid(openssl_asn1_known_oid(
-												this->crl->sig_alg->algorithm));
+#elif 0
+	/* FIXME: we currently can't do this if X509_CRL is opaque (>= 1.1.0) as
+	 * X509_CRL_get0_tbs_sigalg() does not exist and there does not seem to be
+	 * another easy way to get the algorithm from the tbsCertList of the CRL */
+	alg = X509_CRL_get0_tbs_sigalg(this->crl);
+	X509_ALGOR_get0(&oid_tbs, NULL, NULL, alg);
+	if (!chunk_equals(openssl_asn1_obj2chunk(oid),
+					  openssl_asn1_obj2chunk(oid_tbs)))
+	{
+		return FALSE;
+	}
+#endif
+	this->scheme = signature_scheme_from_oid(openssl_asn1_known_oid(oid));
 
 	this->issuer = openssl_x509_name2id(X509_CRL_get_issuer(this->crl));
 	if (!this->issuer)
diff --git a/src/libstrongswan/plugins/openssl/openssl_crypter.c b/src/libstrongswan/plugins/openssl/openssl_crypter.c
index 26f4700b81e8..b9085f9aaa4c 100644
--- a/src/libstrongswan/plugins/openssl/openssl_crypter.c
+++ b/src/libstrongswan/plugins/openssl/openssl_crypter.c
@@ -43,7 +43,7 @@ struct private_openssl_crypter_t {
 /**
  * Look up an OpenSSL algorithm name and validate its key size
  */
-static char* lookup_algorithm(u_int16_t ikev2_algo, size_t *key_size)
+static char* lookup_algorithm(uint16_t ikev2_algo, size_t *key_size)
 {
 	struct {
 		/* identifier specified in IKEv2 */
@@ -57,12 +57,12 @@ static char* lookup_algorithm(u_int16_t ikev2_algo, size_t *key_size)
 		/* maximum key size */
 		size_t key_max;
 	} mappings[] = {
-		{ENCR_DES, 			"des",			 8,		 8,		  8},
-		{ENCR_3DES, 		"des3",			24,		24,		 24},
-		{ENCR_RC5, 			"rc5", 			16,		 5,		255},
-		{ENCR_IDEA, 		"idea",			16,		16,		 16},
-		{ENCR_CAST, 		"cast",			16,		 5,		 16},
-		{ENCR_BLOWFISH, 	"blowfish",		16,		 5,		 56},
+		{ENCR_DES, 			"des-cbc",		 8,		 8,		  8},
+		{ENCR_3DES, 		"des-ede3-cbc",	24,		24,		 24},
+		{ENCR_RC5, 			"rc5-cbc",		16,		 5,		255},
+		{ENCR_IDEA, 		"idea-cbc",		16,		16,		 16},
+		{ENCR_CAST, 		"cast5-cbc",	16,		 5,		 16},
+		{ENCR_BLOWFISH, 	"bf-cbc",		16,		 5,		 56},
 	};
 	int i;
 
@@ -93,8 +93,10 @@ static char* lookup_algorithm(u_int16_t ikev2_algo, size_t *key_size)
 static bool crypt(private_openssl_crypter_t *this, chunk_t data, chunk_t iv,
 				  chunk_t *dst, int enc)
 {
+	EVP_CIPHER_CTX *ctx;
 	int len;
 	u_char *out;
+	bool success = FALSE;
 
 	out = data.ptr;
 	if (dst)
@@ -102,16 +104,19 @@ static bool crypt(private_openssl_crypter_t *this, chunk_t data, chunk_t iv,
 		*dst = chunk_alloc(data.len);
 		out = dst->ptr;
 	}
-	EVP_CIPHER_CTX ctx;
-	EVP_CIPHER_CTX_init(&ctx);
-	return EVP_CipherInit_ex(&ctx, this->cipher, NULL, NULL, NULL, enc) &&
-		   EVP_CIPHER_CTX_set_padding(&ctx, 0) /* disable padding */ &&
-		   EVP_CIPHER_CTX_set_key_length(&ctx, this->key.len) &&
-		   EVP_CipherInit_ex(&ctx, NULL, NULL, this->key.ptr, iv.ptr, enc) &&
-		   EVP_CipherUpdate(&ctx, out, &len, data.ptr, data.len) &&
-		   /* since padding is disabled this does nothing */
-		   EVP_CipherFinal_ex(&ctx, out + len, &len) &&
-		   EVP_CIPHER_CTX_cleanup(&ctx);
+	ctx = EVP_CIPHER_CTX_new();
+	if (EVP_CipherInit_ex(ctx, this->cipher, NULL, NULL, NULL, enc) &&
+		EVP_CIPHER_CTX_set_padding(ctx, 0) /* disable padding */ &&
+		EVP_CIPHER_CTX_set_key_length(ctx, this->key.len) &&
+		EVP_CipherInit_ex(ctx, NULL, NULL, this->key.ptr, iv.ptr, enc) &&
+		EVP_CipherUpdate(ctx, out, &len, data.ptr, data.len) &&
+		/* since padding is disabled this does nothing */
+		EVP_CipherFinal_ex(ctx, out + len, &len))
+	{
+		success = TRUE;
+	}
+	EVP_CIPHER_CTX_free(ctx);
+	return success;
 }
 
 METHOD(crypter_t, decrypt, bool,
@@ -129,13 +134,13 @@ METHOD(crypter_t, encrypt, bool,
 METHOD(crypter_t, get_block_size, size_t,
 	private_openssl_crypter_t *this)
 {
-	return this->cipher->block_size;
+	return EVP_CIPHER_block_size(this->cipher);
 }
 
 METHOD(crypter_t, get_iv_size, size_t,
 	private_openssl_crypter_t *this)
 {
-	return this->cipher->iv_len;
+	return EVP_CIPHER_iv_length(this->cipher);
 }
 
 METHOD(crypter_t, get_key_size, size_t,
@@ -193,13 +198,13 @@ openssl_crypter_t *openssl_crypter_create(encryption_algorithm_t algo,
 					key_size = 16;
 					/* FALL */
 				case 16:        /* AES 128 */
-					this->cipher = EVP_get_cipherbyname("aes128");
+					this->cipher = EVP_get_cipherbyname("aes-128-cbc");
 					break;
 				case 24:        /* AES-192 */
-					this->cipher = EVP_get_cipherbyname("aes192");
+					this->cipher = EVP_get_cipherbyname("aes-192-cbc");
 					break;
 				case 32:        /* AES-256 */
-					this->cipher = EVP_get_cipherbyname("aes256");
+					this->cipher = EVP_get_cipherbyname("aes-256-cbc");
 					break;
 				default:
 					free(this);
@@ -213,13 +218,13 @@ openssl_crypter_t *openssl_crypter_create(encryption_algorithm_t algo,
 					key_size = 16;
 					/* FALL */
 				case 16:        /* CAMELLIA 128 */
-					this->cipher = EVP_get_cipherbyname("camellia128");
+					this->cipher = EVP_get_cipherbyname("camellia-128-cbc");
 					break;
 				case 24:        /* CAMELLIA 192 */
-					this->cipher = EVP_get_cipherbyname("camellia192");
+					this->cipher = EVP_get_cipherbyname("camellia-192-cbc");
 					break;
 				case 32:        /* CAMELLIA 256 */
-					this->cipher = EVP_get_cipherbyname("camellia256");
+					this->cipher = EVP_get_cipherbyname("camellia-256-cbc");
 					break;
 				default:
 					free(this);
diff --git a/src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c b/src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c
index 49ec4880480f..f08dfff7e8f1 100644
--- a/src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c
+++ b/src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c
@@ -22,9 +22,17 @@
 #include <openssl/dh.h>
 
 #include "openssl_diffie_hellman.h"
+#include "openssl_util.h"
 
 #include <utils/debug.h>
 
+/* these were added with 1.1.0 when DH was made opaque */
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+OPENSSL_KEY_FALLBACK(DH, key, pub_key, priv_key)
+OPENSSL_KEY_FALLBACK(DH, pqg, p, q, g)
+#define DH_set_length(dh, len) ({ (dh)->length = len; 1; })
+#endif
+
 typedef struct private_openssl_diffie_hellman_t private_openssl_diffie_hellman_t;
 
 /**
@@ -65,10 +73,12 @@ struct private_openssl_diffie_hellman_t {
 METHOD(diffie_hellman_t, get_my_public_value, bool,
 	private_openssl_diffie_hellman_t *this, chunk_t *value)
 {
+	const BIGNUM *pubkey;
+
 	*value = chunk_alloc(DH_size(this->dh));
 	memset(value->ptr, 0, value->len);
-	BN_bn2bin(this->dh->pub_key,
-			  value->ptr + value->len - BN_num_bytes(this->dh->pub_key));
+	DH_get0_key(this->dh, &pubkey, NULL);
+	BN_bn2bin(pubkey, value->ptr + value->len - BN_num_bytes(pubkey));
 	return TRUE;
 }
 
@@ -116,8 +126,15 @@ METHOD(diffie_hellman_t, set_other_public_value, bool,
 METHOD(diffie_hellman_t, set_private_value, bool,
 	private_openssl_diffie_hellman_t *this, chunk_t value)
 {
-	if (BN_bin2bn(value.ptr, value.len, this->dh->priv_key))
+	BIGNUM *privkey;
+
+	privkey = BN_bin2bn(value.ptr, value.len, NULL);
+	if (privkey)
 	{
+		if (!DH_set0_key(this->dh, NULL, privkey))
+		{
+			return FALSE;
+		}
 		chunk_clear(&this->shared_secret);
 		this->computed = FALSE;
 		return DH_generate_key(this->dh);
@@ -136,16 +153,29 @@ METHOD(diffie_hellman_t, get_dh_group, diffie_hellman_group_t,
  */
 static status_t set_modulus(private_openssl_diffie_hellman_t *this)
 {
+	BIGNUM *p, *g;
+
 	diffie_hellman_params_t *params = diffie_hellman_get_params(this->group);
 	if (!params)
 	{
 		return NOT_FOUND;
 	}
-	this->dh->p = BN_bin2bn(params->prime.ptr, params->prime.len, NULL);
-	this->dh->g = BN_bin2bn(params->generator.ptr, params->generator.len, NULL);
+	p = BN_bin2bn(params->prime.ptr, params->prime.len, NULL);
+	g = BN_bin2bn(params->generator.ptr, params->generator.len, NULL);
+	if (!DH_set0_pqg(this->dh, p, NULL, g))
+	{
+		return FAILED;
+	}
 	if (params->exp_len != params->prime.len)
 	{
-		this->dh->length = params->exp_len * 8;
+#ifdef OPENSSL_IS_BORINGSSL
+		this->dh->priv_length = params->exp_len * 8;
+#else
+		if (!DH_set_length(this->dh, params->exp_len * 8))
+		{
+			return FAILED;
+		}
+#endif
 	}
 	return SUCCESS;
 }
@@ -166,6 +196,7 @@ openssl_diffie_hellman_t *openssl_diffie_hellman_create(
 							diffie_hellman_group_t group, chunk_t g, chunk_t p)
 {
 	private_openssl_diffie_hellman_t *this;
+	const BIGNUM *privkey;
 
 	INIT(this,
 		.public = {
@@ -194,8 +225,12 @@ openssl_diffie_hellman_t *openssl_diffie_hellman_create(
 
 	if (group == MODP_CUSTOM)
 	{
-		this->dh->p = BN_bin2bn(p.ptr, p.len, NULL);
-		this->dh->g = BN_bin2bn(g.ptr, g.len, NULL);
+		if (!DH_set0_pqg(this->dh, BN_bin2bn(p.ptr, p.len, NULL), NULL,
+						 BN_bin2bn(g.ptr, g.len, NULL)))
+		{
+			destroy(this);
+			return NULL;
+		}
 	}
 	else
 	{
@@ -213,9 +248,8 @@ openssl_diffie_hellman_t *openssl_diffie_hellman_create(
 		destroy(this);
 		return NULL;
 	}
-	DBG2(DBG_LIB, "size of DH secret exponent: %d bits",
-		 BN_num_bits(this->dh->priv_key));
-
+	DH_get0_key(this->dh, NULL, &privkey);
+	DBG2(DBG_LIB, "size of DH secret exponent: %d bits", BN_num_bits(privkey));
 	return &this->public;
 }
 
diff --git a/src/libstrongswan/plugins/openssl/openssl_ec_private_key.c b/src/libstrongswan/plugins/openssl/openssl_ec_private_key.c
index bc7884c99b01..24fe623eb410 100644
--- a/src/libstrongswan/plugins/openssl/openssl_ec_private_key.c
+++ b/src/libstrongswan/plugins/openssl/openssl_ec_private_key.c
@@ -28,6 +28,10 @@
 #include <openssl/ecdsa.h>
 #include <openssl/x509.h>
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+OPENSSL_KEY_FALLBACK(ECDSA_SIG, r, s)
+#endif
+
 typedef struct private_openssl_ec_private_key_t private_openssl_ec_private_key_t;
 
 /**
@@ -59,15 +63,17 @@ bool openssl_ec_fingerprint(EC_KEY *ec, cred_encoding_type_t type, chunk_t *fp);
 static bool build_signature(private_openssl_ec_private_key_t *this,
 							chunk_t hash, chunk_t *signature)
 {
-	bool built = FALSE;
+	const BIGNUM *r, *s;
 	ECDSA_SIG *sig;
+	bool built = FALSE;
 
 	sig = ECDSA_do_sign(hash.ptr, hash.len, this->ec);
 	if (sig)
 	{
+		ECDSA_SIG_get0(sig, &r, &s);
 		/* concatenate BNs r/s to a signature chunk */
 		built = openssl_bn_cat(EC_FIELD_ELEMENT_LEN(EC_KEY_get0_group(this->ec)),
-							   sig->r, sig->s, signature);
+							   r, s, signature);
 		ECDSA_SIG_free(sig);
 	}
 	return built;
diff --git a/src/libstrongswan/plugins/openssl/openssl_ec_public_key.c b/src/libstrongswan/plugins/openssl/openssl_ec_public_key.c
index 21dcb0120710..a1e56fc5e386 100644
--- a/src/libstrongswan/plugins/openssl/openssl_ec_public_key.c
+++ b/src/libstrongswan/plugins/openssl/openssl_ec_public_key.c
@@ -27,6 +27,10 @@
 #include <openssl/ecdsa.h>
 #include <openssl/x509.h>
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+OPENSSL_KEY_FALLBACK(ECDSA_SIG, r, s)
+#endif
+
 typedef struct private_openssl_ec_public_key_t private_openssl_ec_public_key_t;
 
 /**
@@ -55,14 +59,23 @@ struct private_openssl_ec_public_key_t {
 static bool verify_signature(private_openssl_ec_public_key_t *this,
 							 chunk_t hash, chunk_t signature)
 {
-	bool valid = FALSE;
+	BIGNUM *r, *s;
 	ECDSA_SIG *sig;
+	bool valid = FALSE;
 
 	sig = ECDSA_SIG_new();
 	if (sig)
 	{
-		/* split the signature chunk in r and s */
-		if (openssl_bn_split(signature, sig->r, sig->s))
+		r = BN_new();
+		s = BN_new();
+		if (!openssl_bn_split(signature, r, s))
+		{
+			BN_free(r);
+			BN_free(s);
+			ECDSA_SIG_free(sig);
+			return FALSE;
+		}
+		if (ECDSA_SIG_set0(sig, r, s))
 		{
 			valid = (ECDSA_do_verify(hash.ptr, hash.len, sig, this->ec) == 1);
 		}
diff --git a/src/libstrongswan/plugins/openssl/openssl_gcm.c b/src/libstrongswan/plugins/openssl/openssl_gcm.c
index 147e4afb449e..6bbe4af9560c 100644
--- a/src/libstrongswan/plugins/openssl/openssl_gcm.c
+++ b/src/libstrongswan/plugins/openssl/openssl_gcm.c
@@ -71,7 +71,7 @@ struct private_aead_t {
 static bool crypt(private_aead_t *this, chunk_t data, chunk_t assoc, chunk_t iv,
 				  u_char *out, int enc)
 {
-	EVP_CIPHER_CTX ctx;
+	EVP_CIPHER_CTX *ctx;
 	u_char nonce[NONCE_LEN];
 	bool success = FALSE;
 	int len;
@@ -79,29 +79,29 @@ static bool crypt(private_aead_t *this, chunk_t data, chunk_t assoc, chunk_t iv,
 	memcpy(nonce, this->salt, SALT_LEN);
 	memcpy(nonce + SALT_LEN, iv.ptr, IV_LEN);
 
-	EVP_CIPHER_CTX_init(&ctx);
-	EVP_CIPHER_CTX_set_padding(&ctx, 0);
-	if (!EVP_CipherInit_ex(&ctx, this->cipher, NULL, NULL, NULL, enc) ||
-		!EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_SET_IVLEN, NONCE_LEN, NULL) ||
-		!EVP_CipherInit_ex(&ctx, NULL, NULL, this->key.ptr, nonce, enc))
+	ctx = EVP_CIPHER_CTX_new();
+	EVP_CIPHER_CTX_set_padding(ctx, 0);
+	if (!EVP_CipherInit_ex(ctx, this->cipher, NULL, NULL, NULL, enc) ||
+		!EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, NONCE_LEN, NULL) ||
+		!EVP_CipherInit_ex(ctx, NULL, NULL, this->key.ptr, nonce, enc))
 	{
 		goto done;
 	}
-	if (!enc && !EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_SET_TAG, this->icv_size,
+	if (!enc && !EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, this->icv_size,
 									 data.ptr + data.len))
 	{	/* set ICV for verification on decryption */
 		goto done;
 	}
-	if (assoc.len && !EVP_CipherUpdate(&ctx, NULL, &len, assoc.ptr, assoc.len))
+	if (assoc.len && !EVP_CipherUpdate(ctx, NULL, &len, assoc.ptr, assoc.len))
 	{	/* set AAD if specified */
 		goto done;
 	}
-	if (!EVP_CipherUpdate(&ctx, out, &len, data.ptr, data.len) ||
-		!EVP_CipherFinal_ex(&ctx, out + len, &len))
+	if (!EVP_CipherUpdate(ctx, out, &len, data.ptr, data.len) ||
+		!EVP_CipherFinal_ex(ctx, out + len, &len))
 	{	/* EVP_CipherFinal_ex fails if ICV is incorrect on decryption */
 		goto done;
 	}
-	if (enc && !EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_GET_TAG, this->icv_size,
+	if (enc && !EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, this->icv_size,
 									out + data.len))
 	{	/* copy back the ICV when encrypting */
 		goto done;
@@ -109,7 +109,7 @@ static bool crypt(private_aead_t *this, chunk_t data, chunk_t assoc, chunk_t iv,
 	success = TRUE;
 
 done:
-	EVP_CIPHER_CTX_cleanup(&ctx);
+	EVP_CIPHER_CTX_free(ctx);
 	return success;
 }
 
@@ -152,7 +152,7 @@ METHOD(aead_t, decrypt, bool,
 METHOD(aead_t, get_block_size, size_t,
 	private_aead_t *this)
 {
-	return this->cipher->block_size;
+	return EVP_CIPHER_block_size(this->cipher);
 }
 
 METHOD(aead_t, get_icv_size, size_t,
diff --git a/src/libstrongswan/plugins/openssl/openssl_hasher.c b/src/libstrongswan/plugins/openssl/openssl_hasher.c
index 50b14698be93..96ee230c9b25 100644
--- a/src/libstrongswan/plugins/openssl/openssl_hasher.c
+++ b/src/libstrongswan/plugins/openssl/openssl_hasher.c
@@ -43,7 +43,7 @@ struct private_openssl_hasher_t {
 METHOD(hasher_t, get_hash_size, size_t,
 	private_openssl_hasher_t *this)
 {
-	return this->hasher->md_size;
+	return EVP_MD_size(this->hasher);
 }
 
 METHOD(hasher_t, reset, bool,
@@ -53,7 +53,7 @@ METHOD(hasher_t, reset, bool,
 }
 
 METHOD(hasher_t, get_hash, bool,
-	private_openssl_hasher_t *this, chunk_t chunk, u_int8_t *hash)
+	private_openssl_hasher_t *this, chunk_t chunk, uint8_t *hash)
 {
 	if (EVP_DigestUpdate(this->ctx, chunk.ptr, chunk.len) != 1)
 	{
diff --git a/src/libstrongswan/plugins/openssl/openssl_hmac.c b/src/libstrongswan/plugins/openssl/openssl_hmac.c
index 065187a8c301..16e7071166e5 100644
--- a/src/libstrongswan/plugins/openssl/openssl_hmac.c
+++ b/src/libstrongswan/plugins/openssl/openssl_hmac.c
@@ -68,7 +68,14 @@ struct private_mac_t {
 	/**
 	 * Current HMAC context
 	 */
-	HMAC_CTX hmac;
+	HMAC_CTX *hmac;
+
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+	/**
+	 * Static context for OpenSSL < 1.1.0
+	 */
+	HMAC_CTX hmac_ctx;
+#endif
 
 	/**
 	 * Key set on HMAC_CTX?
@@ -80,28 +87,28 @@ METHOD(mac_t, set_key, bool,
 	private_mac_t *this, chunk_t key)
 {
 #if OPENSSL_VERSION_NUMBER >= 0x10000000L
-	if (HMAC_Init_ex(&this->hmac, key.ptr, key.len, this->hasher, NULL))
+	if (HMAC_Init_ex(this->hmac, key.ptr, key.len, this->hasher, NULL))
 	{
 		this->key_set = TRUE;
 		return TRUE;
 	}
 	return FALSE;
 #else /* OPENSSL_VERSION_NUMBER < 1.0 */
-	HMAC_Init_ex(&this->hmac, key.ptr, key.len, this->hasher, NULL);
+	HMAC_Init_ex(this->hmac, key.ptr, key.len, this->hasher, NULL);
 	this->key_set = TRUE;
 	return TRUE;
 #endif
 }
 
 METHOD(mac_t, get_mac, bool,
-	private_mac_t *this, chunk_t data, u_int8_t *out)
+	private_mac_t *this, chunk_t data, uint8_t *out)
 {
 	if (!this->key_set)
 	{
 		return FALSE;
 	}
 #if OPENSSL_VERSION_NUMBER >= 0x10000000L
-	if (!HMAC_Update(&this->hmac, data.ptr, data.len))
+	if (!HMAC_Update(this->hmac, data.ptr, data.len))
 	{
 		return FALSE;
 	}
@@ -109,17 +116,17 @@ METHOD(mac_t, get_mac, bool,
 	{
 		return TRUE;
 	}
-	if (!HMAC_Final(&this->hmac, out, NULL))
+	if (!HMAC_Final(this->hmac, out, NULL))
 	{
 		return FALSE;
 	}
 #else /* OPENSSL_VERSION_NUMBER < 1.0 */
-	HMAC_Update(&this->hmac, data.ptr, data.len);
+	HMAC_Update(this->hmac, data.ptr, data.len);
 	if (out == NULL)
 	{
 		return TRUE;
 	}
-	HMAC_Final(&this->hmac, out, NULL);
+	HMAC_Final(this->hmac, out, NULL);
 #endif
 	return set_key(this, chunk_empty);
 }
@@ -133,7 +140,11 @@ METHOD(mac_t, get_mac_size, size_t,
 METHOD(mac_t, destroy, void,
 	private_mac_t *this)
 {
-	HMAC_CTX_cleanup(&this->hmac);
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+	HMAC_CTX_free(this->hmac);
+#else
+	HMAC_CTX_cleanup(&this->hmac_ctx);
+#endif
 	free(this);
 }
 
@@ -167,7 +178,12 @@ static mac_t *hmac_create(hash_algorithm_t algo)
 		return NULL;
 	}
 
-	HMAC_CTX_init(&this->hmac);
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+	this->hmac = HMAC_CTX_new();
+#else
+	HMAC_CTX_init(&this->hmac_ctx);
+	this->hmac = &this->hmac_ctx;
+#endif
 
 	return &this->public;
 }
diff --git a/src/libstrongswan/plugins/openssl/openssl_pkcs12.c b/src/libstrongswan/plugins/openssl/openssl_pkcs12.c
index d16b2cc0569f..705e96c695f6 100644
--- a/src/libstrongswan/plugins/openssl/openssl_pkcs12.c
+++ b/src/libstrongswan/plugins/openssl/openssl_pkcs12.c
@@ -23,6 +23,10 @@
 #include <library.h>
 #include <credentials/sets/mem_cred.h>
 
+#ifdef OPENSSL_IS_BORINGSSL
+#define EVP_PKEY_base_id(p) EVP_PKEY_type(p->type)
+#endif
+
 typedef struct private_pkcs12_t private_pkcs12_t;
 
 /**
@@ -110,7 +114,7 @@ static bool add_key(private_pkcs12_t *this, EVP_PKEY *private)
 	{	/* no private key is ok */
 		return TRUE;
 	}
-	switch (EVP_PKEY_type(private->type))
+	switch (EVP_PKEY_base_id(private))
 	{
 		case EVP_PKEY_RSA:
 			type = KEY_RSA;
diff --git a/src/libstrongswan/plugins/openssl/openssl_pkcs7.c b/src/libstrongswan/plugins/openssl/openssl_pkcs7.c
index 891e829ae827..f10987c8d037 100644
--- a/src/libstrongswan/plugins/openssl/openssl_pkcs7.c
+++ b/src/libstrongswan/plugins/openssl/openssl_pkcs7.c
@@ -29,6 +29,10 @@
 
 #include <openssl/cms.h>
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#define X509_ATTRIBUTE_get0_object(attr) ({ (attr)->object; })
+#endif
+
 typedef struct private_openssl_pkcs7_t private_openssl_pkcs7_t;
 
 /**
@@ -432,11 +436,11 @@ METHOD(pkcs7_t, get_attribute, bool,
 	for (i = 0; i < CMS_signed_get_attr_count(si); i++)
 	{
 		attr = CMS_signed_get_attr(si, i);
-		if (!attr->single && sk_ASN1_TYPE_num(attr->value.set) == 1 &&
-			openssl_asn1_known_oid(attr->object) == oid)
+		if (X509_ATTRIBUTE_count(attr) == 1 &&
+			openssl_asn1_known_oid(X509_ATTRIBUTE_get0_object(attr)) == oid)
 		{
 			/* get first value in SET */
-			type = sk_ASN1_TYPE_value(attr->value.set, 0);
+			type = X509_ATTRIBUTE_get0_type(attr, 0);
 			chunk = wrapped = openssl_i2chunk(ASN1_TYPE, type);
 			if (asn1_unwrap(&chunk, &chunk) != 0x100 /* ASN1_INVALID */)
 			{
diff --git a/src/libstrongswan/plugins/openssl/openssl_plugin.c b/src/libstrongswan/plugins/openssl/openssl_plugin.c
index aeb9be409b77..3e3b986dffc0 100644
--- a/src/libstrongswan/plugins/openssl/openssl_plugin.c
+++ b/src/libstrongswan/plugins/openssl/openssl_plugin.c
@@ -66,6 +66,11 @@ struct private_openssl_plugin_t {
 };
 
 /**
+ * OpenSSL is thread-safe since 1.1.0
+ */
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+
+/**
  * Array of static mutexs, with CRYPTO_num_locks() mutex
  */
 static mutex_t **mutex = NULL;
@@ -227,6 +232,14 @@ static void threading_cleanup()
 	cleanup->destroy(cleanup);
 }
 
+#else /* OPENSSL_VERSION_NUMBER */
+
+#define threading_init()
+
+#define threading_cleanup()
+
+#endif
+
 /**
  * Seed the OpenSSL RNG, if required
  */
@@ -502,8 +515,14 @@ METHOD(plugin_t, get_features, int,
 METHOD(plugin_t, destroy, void,
 	private_openssl_plugin_t *this)
 {
+/* OpenSSL 1.1.0 cleans up itself at exit and while OPENSSL_cleanup() exists we
+ * can't call it as we couldn't re-initialize the library (as required by the
+ * unit tests and the Android app) */
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#ifndef OPENSSL_IS_BORINGSSL
 	CONF_modules_free();
 	OBJ_cleanup();
+#endif
 	EVP_cleanup();
 #ifndef OPENSSL_NO_ENGINE
 	ENGINE_cleanup();
@@ -511,6 +530,7 @@ METHOD(plugin_t, destroy, void,
 	CRYPTO_cleanup_all_ex_data();
 	threading_cleanup();
 	ERR_free_strings();
+#endif /* OPENSSL_VERSION_NUMBER */
 
 	free(this);
 }
@@ -553,10 +573,23 @@ plugin_t *openssl_plugin_create()
 		},
 	);
 
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+	/* note that we can't call OPENSSL_cleanup() when the plugin is destroyed
+	 * as we couldn't initialize the library again afterwards */
+	OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG |
+						OPENSSL_INIT_ENGINE_ALL_BUILTIN, NULL);
+#else /* OPENSSL_VERSION_NUMBER */
 	threading_init();
-
+#ifndef OPENSSL_IS_BORINGSSL
 	OPENSSL_config(NULL);
+#endif
 	OpenSSL_add_all_algorithms();
+#ifndef OPENSSL_NO_ENGINE
+	/* activate support for hardware accelerators */
+	ENGINE_load_builtin_engines();
+	ENGINE_register_all_complete();
+#endif /* OPENSSL_NO_ENGINE */
+#endif /* OPENSSL_VERSION_NUMBER */
 
 #ifdef OPENSSL_FIPS
 	/* we do this here as it may have been enabled via openssl.conf */
@@ -565,12 +598,6 @@ plugin_t *openssl_plugin_create()
 		"openssl FIPS mode(%d) - %sabled ", fips_mode, fips_mode ? "en" : "dis");
 #endif /* OPENSSL_FIPS */
 
-#ifndef OPENSSL_NO_ENGINE
-	/* activate support for hardware accelerators */
-	ENGINE_load_builtin_engines();
-	ENGINE_register_all_complete();
-#endif /* OPENSSL_NO_ENGINE */
-
 	if (!seed_rng())
 	{
 		DBG1(DBG_CFG, "no RNG found to seed OpenSSL");
diff --git a/src/libstrongswan/plugins/openssl/openssl_rng.c b/src/libstrongswan/plugins/openssl/openssl_rng.c
index c807bb607262..a25b6b4b6656 100644
--- a/src/libstrongswan/plugins/openssl/openssl_rng.c
+++ b/src/libstrongswan/plugins/openssl/openssl_rng.c
@@ -47,15 +47,8 @@ struct private_openssl_rng_t {
 };
 
 METHOD(rng_t, get_bytes, bool,
-	private_openssl_rng_t *this, size_t bytes, u_int8_t *buffer)
+	private_openssl_rng_t *this, size_t bytes, uint8_t *buffer)
 {
-	if (this->quality == RNG_WEAK)
-	{
-		/* RAND_pseudo_bytes() returns 1 if returned bytes are strong,
-		 * 0 if of not. Both is acceptable for RNG_WEAK. */
-		return RAND_pseudo_bytes((char*)buffer, bytes) != -1;
-	}
-	/* A 0 return value is a failure for RAND_bytes() */
 	return RAND_bytes((char*)buffer, bytes) == 1;
 }
 
diff --git a/src/libstrongswan/plugins/openssl/openssl_rsa_private_key.c b/src/libstrongswan/plugins/openssl/openssl_rsa_private_key.c
index de02f302d6c7..485e0bbc722a 100644
--- a/src/libstrongswan/plugins/openssl/openssl_rsa_private_key.c
+++ b/src/libstrongswan/plugins/openssl/openssl_rsa_private_key.c
@@ -20,6 +20,7 @@
 
 #include "openssl_rsa_private_key.h"
 #include "openssl_rsa_public_key.h"
+#include "openssl_util.h"
 
 #include <utils/debug.h>
 
@@ -35,6 +36,12 @@
  */
 #define PUBLIC_EXPONENT 0x10001
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+OPENSSL_KEY_FALLBACK(RSA, key, n, e, d)
+OPENSSL_KEY_FALLBACK(RSA, factors, p, q)
+OPENSSL_KEY_FALLBACK(RSA, crt_params, dmp1, dmq1, iqmp)
+#endif
+
 typedef struct private_openssl_rsa_private_key_t private_openssl_rsa_private_key_t;
 
 /**
@@ -436,22 +443,38 @@ openssl_rsa_private_key_t *openssl_rsa_private_key_load(key_type_t type,
 	}
 	else if (n.ptr && e.ptr && d.ptr && p.ptr && q.ptr && coeff.ptr)
 	{
+		BIGNUM *bn_n, *bn_e, *bn_d, *bn_p, *bn_q;
+		BIGNUM *dmp1 = NULL, *dmq1 = NULL, *iqmp = NULL;
+
 		this->rsa = RSA_new();
-		this->rsa->n = BN_bin2bn((const u_char*)n.ptr, n.len, NULL);
-		this->rsa->e = BN_bin2bn((const u_char*)e.ptr, e.len, NULL);
-		this->rsa->d = BN_bin2bn((const u_char*)d.ptr, d.len, NULL);
-		this->rsa->p = BN_bin2bn((const u_char*)p.ptr, p.len, NULL);
-		this->rsa->q = BN_bin2bn((const u_char*)q.ptr, q.len, NULL);
+
+		bn_n = BN_bin2bn((const u_char*)n.ptr, n.len, NULL);
+		bn_e = BN_bin2bn((const u_char*)e.ptr, e.len, NULL);
+		bn_d = BN_bin2bn((const u_char*)d.ptr, d.len, NULL);
+		if (!RSA_set0_key(this->rsa, bn_n, bn_e, bn_d))
+		{
+			destroy(this);
+			return NULL;
+
+		}
+		bn_p = BN_bin2bn((const u_char*)p.ptr, p.len, NULL);
+		bn_q = BN_bin2bn((const u_char*)q.ptr, q.len, NULL);
+		if (!RSA_set0_factors(this->rsa, bn_p, bn_q))
+		{
+			destroy(this);
+			return NULL;
+		}
 		if (exp1.ptr)
 		{
-			this->rsa->dmp1 = BN_bin2bn((const u_char*)exp1.ptr, exp1.len, NULL);
+			dmp1 = BN_bin2bn((const u_char*)exp1.ptr, exp1.len, NULL);
 		}
 		if (exp2.ptr)
 		{
-			this->rsa->dmq1 = BN_bin2bn((const u_char*)exp2.ptr, exp2.len, NULL);
+			dmq1 = BN_bin2bn((const u_char*)exp2.ptr, exp2.len, NULL);
 		}
-		this->rsa->iqmp = BN_bin2bn((const u_char*)coeff.ptr, coeff.len, NULL);
-		if (RSA_check_key(this->rsa) == 1)
+		iqmp = BN_bin2bn((const u_char*)coeff.ptr, coeff.len, NULL);
+		if (RSA_set0_crt_params(this->rsa, dmp1, dmq1, iqmp) &&
+			RSA_check_key(this->rsa) == 1)
 		{
 			return &this->public;
 		}
diff --git a/src/libstrongswan/plugins/openssl/openssl_rsa_public_key.c b/src/libstrongswan/plugins/openssl/openssl_rsa_public_key.c
index db928569f31f..d66d5016e81c 100644
--- a/src/libstrongswan/plugins/openssl/openssl_rsa_public_key.c
+++ b/src/libstrongswan/plugins/openssl/openssl_rsa_public_key.c
@@ -28,6 +28,10 @@
 #include <openssl/rsa.h>
 #include <openssl/x509.h>
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+OPENSSL_KEY_FALLBACK(RSA, key, n, e, d)
+#endif
+
 typedef struct private_openssl_rsa_public_key_t private_openssl_rsa_public_key_t;
 
 /**
@@ -224,11 +228,13 @@ bool openssl_rsa_fingerprint(RSA *rsa, cred_encoding_type_t type, chunk_t *fp)
 			break;
 		default:
 		{
+			const BIGNUM *bn_n, *bn_e;
 			chunk_t n = chunk_empty, e = chunk_empty;
 			bool success = FALSE;
 
-			if (openssl_bn2chunk(rsa->n, &n) &&
-				openssl_bn2chunk(rsa->e, &e))
+			RSA_get0_key(rsa, &bn_n, &bn_e, NULL);
+			if (openssl_bn2chunk(bn_n, &n) &&
+				openssl_bn2chunk(bn_e, &e))
 			{
 				success = lib->encoding->encode(lib->encoding, type, rsa, fp,
 									CRED_PART_RSA_MODULUS, n,
@@ -297,10 +303,12 @@ METHOD(public_key_t, get_encoding, bool,
 		}
 		default:
 		{
+			const BIGNUM *bn_n, *bn_e;
 			chunk_t n = chunk_empty, e = chunk_empty;
 
-			if (openssl_bn2chunk(this->rsa->n, &n) &&
-				openssl_bn2chunk(this->rsa->e, &e))
+			RSA_get0_key(this->rsa, &bn_n, &bn_e, NULL);
+			if (openssl_bn2chunk(bn_n, &n) &&
+				openssl_bn2chunk(bn_e, &e))
 			{
 				success = lib->encoding->encode(lib->encoding, type, NULL,
 									encoding, CRED_PART_RSA_MODULUS, n,
@@ -416,10 +424,15 @@ openssl_rsa_public_key_t *openssl_rsa_public_key_load(key_type_t type,
 	}
 	else if (n.ptr && e.ptr && type == KEY_RSA)
 	{
+		BIGNUM *bn_n, *bn_e;
+
 		this->rsa = RSA_new();
-		this->rsa->n = BN_bin2bn((const u_char*)n.ptr, n.len, NULL);
-		this->rsa->e = BN_bin2bn((const u_char*)e.ptr, e.len, NULL);
-		return &this->public;
+		bn_n = BN_bin2bn((const u_char*)n.ptr, n.len, NULL);
+		bn_e = BN_bin2bn((const u_char*)e.ptr, e.len, NULL);
+		if (RSA_set0_key(this->rsa, bn_n, bn_e, NULL))
+		{
+			return &this->public;
+		}
 	}
 	destroy(this);
 	return NULL;
diff --git a/src/libstrongswan/plugins/openssl/openssl_sha1_prf.c b/src/libstrongswan/plugins/openssl/openssl_sha1_prf.c
index 446c93e2b7c7..f6df03f12d99 100644
--- a/src/libstrongswan/plugins/openssl/openssl_sha1_prf.c
+++ b/src/libstrongswan/plugins/openssl/openssl_sha1_prf.c
@@ -40,7 +40,7 @@ struct private_openssl_sha1_prf_t {
 };
 
 METHOD(prf_t, get_bytes, bool,
-	private_openssl_sha1_prf_t *this, chunk_t seed, u_int8_t *bytes)
+	private_openssl_sha1_prf_t *this, chunk_t seed, uint8_t *bytes)
 {
 #if OPENSSL_VERSION_NUMBER >= 0x10000000L
 	if (!SHA1_Update(&this->ctx, seed.ptr, seed.len))
@@ -53,7 +53,7 @@ METHOD(prf_t, get_bytes, bool,
 
 	if (bytes)
 	{
-		u_int32_t *hash = (u_int32_t*)bytes;
+		uint32_t *hash = (uint32_t*)bytes;
 
 		hash[0] = htonl(this->ctx.h0);
 		hash[1] = htonl(this->ctx.h1);
diff --git a/src/libstrongswan/plugins/openssl/openssl_util.c b/src/libstrongswan/plugins/openssl/openssl_util.c
index 2f981370174b..6580e1c7df3a 100644
--- a/src/libstrongswan/plugins/openssl/openssl_util.c
+++ b/src/libstrongswan/plugins/openssl/openssl_util.c
@@ -22,6 +22,12 @@
 #include <openssl/evp.h>
 #include <openssl/x509.h>
 
+/* these were added with 1.1.0 when ASN1_OBJECT was made opaque */
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#define OBJ_get0_data(o) ((o)->data)
+#define OBJ_length(o) ((o)->length)
+#endif
+
 /**
  * Described in header.
  */
@@ -51,7 +57,7 @@ bool openssl_hash_chunk(int hash_type, chunk_t data, chunk_t *hash)
 		goto error;
 	}
 
-	*hash = chunk_alloc(hasher->md_size);
+	*hash = chunk_alloc(EVP_MD_size(hasher));
 	if (!EVP_DigestFinal_ex(ctx, hash->ptr, NULL))
 	{
 		chunk_free(hash);
@@ -70,7 +76,8 @@ error:
 /**
  * Described in header.
  */
-bool openssl_bn_cat(int len, BIGNUM *a, BIGNUM *b, chunk_t *chunk)
+bool openssl_bn_cat(const int len, const BIGNUM *a, const BIGNUM *b,
+					chunk_t *chunk)
 {
 	int offset;
 
@@ -127,7 +134,7 @@ bool openssl_bn_split(chunk_t chunk, BIGNUM *a, BIGNUM *b)
 /**
  * Described in header.
  */
-bool openssl_bn2chunk(BIGNUM *bn, chunk_t *chunk)
+bool openssl_bn2chunk(const BIGNUM *bn, chunk_t *chunk)
 {
 	*chunk = chunk_alloc(BN_num_bytes(bn));
 	if (BN_bn2bin(bn, chunk->ptr) == chunk->len)
@@ -149,7 +156,7 @@ chunk_t openssl_asn1_obj2chunk(ASN1_OBJECT *asn1)
 {
 	if (asn1)
 	{
-		return chunk_create((u_char*)asn1->data, asn1->length);
+		return chunk_create((u_char*)OBJ_get0_data(asn1), OBJ_length(asn1));
 	}
 	return chunk_empty;
 }
diff --git a/src/libstrongswan/plugins/openssl/openssl_util.h b/src/libstrongswan/plugins/openssl/openssl_util.h
index 2db073139214..f4186e8c4690 100644
--- a/src/libstrongswan/plugins/openssl/openssl_util.h
+++ b/src/libstrongswan/plugins/openssl/openssl_util.h
@@ -60,7 +60,8 @@ bool openssl_hash_chunk(int hash_type, chunk_t data, chunk_t *hash);
  * @param chunk		resulting chunk
  * @return			TRUE on success, FALSE otherwise
  */
-bool openssl_bn_cat(int len, BIGNUM *a, BIGNUM *b, chunk_t *chunk);
+bool openssl_bn_cat(const int len, const BIGNUM *a, const BIGNUM *b,
+					chunk_t *chunk);
 
 /**
  * Splits a chunk into two bignums of equal binary length.
@@ -80,7 +81,7 @@ bool openssl_bn_split(chunk_t chunk, BIGNUM *a, BIGNUM *b);
  * @param chunk		the chunk (data gets allocated)
  * @return			TRUE on success, FALSE otherwise
  */
-bool openssl_bn2chunk(BIGNUM *bn, chunk_t *chunk);
+bool openssl_bn2chunk(const BIGNUM *bn, chunk_t *chunk);
 
 /**
  * Allocate a chunk using the i2d function of a given object
@@ -134,4 +135,42 @@ int openssl_asn1_known_oid(ASN1_OBJECT *obj);
  */
 time_t openssl_asn1_to_time(ASN1_TIME *time);
 
+/**
+ * Macros to define fallback getters/setters to access keys (BIGNUM*) for types
+ * that were made opaque with OpenSSL 1.1.0.
+ */
+#define OPENSSL_KEY_FALLBACK(...) VA_ARGS_DISPATCH(OPENSSL_KEY_FALLBACK, __VA_ARGS__)(__VA_ARGS__)
+#define OPENSSL_KEY_FALLBACK3(type, k1, k2) \
+__attribute__((unused)) \
+static inline void type##_get0(const type *o, const BIGNUM **k1, const BIGNUM **k2) { \
+	if (k1) *k1 = o->k1; \
+	if (k2) *k2 = o->k2; } \
+__attribute__((unused)) \
+static inline int type##_set0(type *o, BIGNUM *k1, BIGNUM *k2) { \
+	if (k1) { BN_clear_free(o->k1); o->k1 = k1; } \
+	if (k2) { BN_clear_free(o->k2); o->k2 = k2; } \
+	return 1; }
+#define OPENSSL_KEY_FALLBACK4(type, name, k1, k2) \
+__attribute__((unused)) \
+static inline void type##_get0_##name(const type *o, const BIGNUM **k1, const BIGNUM **k2) { \
+	if (k1) *k1 = o->k1; \
+	if (k2) *k2 = o->k2; } \
+__attribute__((unused)) \
+static inline int type##_set0_##name(type *o, BIGNUM *k1, BIGNUM *k2) { \
+	if (k1) { BN_clear_free(o->k1); o->k1 = k1; } \
+	if (k2) { BN_clear_free(o->k2); o->k2 = k2; } \
+	return 1; }
+#define OPENSSL_KEY_FALLBACK5(type, name, k1, k2, k3) \
+__attribute__((unused)) \
+static inline void type##_get0_##name(const type *o, const BIGNUM **k1, const BIGNUM **k2, const BIGNUM **k3) { \
+	if (k1) *k1 = o->k1; \
+	if (k2) *k2 = o->k2; \
+	if (k3) *k3 = o->k3; } \
+__attribute__((unused)) \
+static inline int type##_set0_##name(type *o, BIGNUM *k1, BIGNUM *k2, BIGNUM *k3) { \
+	if (k1) { BN_clear_free(o->k1); o->k1 = k1; } \
+	if (k2) { BN_clear_free(o->k2); o->k2 = k2; } \
+	if (k3) { BN_clear_free(o->k3); o->k3 = k3; } \
+	return 1; }
+
 #endif /** OPENSSL_UTIL_H_ @}*/
diff --git a/src/libstrongswan/plugins/openssl/openssl_x509.c b/src/libstrongswan/plugins/openssl/openssl_x509.c
index 7a5b206dddfb..e95eb729bb72 100644
--- a/src/libstrongswan/plugins/openssl/openssl_x509.c
+++ b/src/libstrongswan/plugins/openssl/openssl_x509.c
@@ -60,6 +60,25 @@
 #define OPENSSL_NO_RFC3779
 #endif
 
+/* added with 1.0.2 */
+#if OPENSSL_VERSION_NUMBER < 0x10002000L
+static inline void X509_get0_signature(ASN1_BIT_STRING **psig, X509_ALGOR **palg, const X509 *x) {
+	if (psig) { *psig = x->signature; }
+	if (palg) { *palg = x->sig_alg; }
+}
+#endif
+
+/* added with 1.1.0 when X509 etc. was made opaque */
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#define X509_get0_extensions(x509) ({ (x509)->cert_info->extensions; })
+#define X509_get0_tbs_sigalg(x509) ({ (x509)->cert_info->signature; })
+#define X509_ALGOR_get0(oid, ppt, ppv, alg) ({ *(oid) = (alg)->algorithm; })
+#define X509_PUBKEY_get0_param(oid, pk, len, pa, pub) X509_ALGOR_get0(oid, NULL, NULL, (pub)->algor)
+#define X509v3_addr_get_afi v3_addr_get_afi
+#define X509v3_addr_get_range v3_addr_get_range
+#define X509v3_addr_is_canonical v3_addr_is_canonical
+#endif
+
 typedef struct private_openssl_x509_t private_openssl_x509_t;
 
 /**
@@ -380,6 +399,7 @@ METHOD(certificate_t, issued_by, bool,
 	public_key_t *key;
 	bool valid;
 	x509_t *x509 = (x509_t*)issuer;
+	ASN1_BIT_STRING *sig;
 	chunk_t tbs;
 
 	if (&this->public.x509.interface == issuer)
@@ -413,9 +433,14 @@ METHOD(certificate_t, issued_by, bool,
 	{
 		return FALSE;
 	}
+	/* i2d_re_X509_tbs() was added with 1.1.0 when X509 was made opaque */
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+	tbs = openssl_i2chunk(re_X509_tbs, this->x509);
+#else
 	tbs = openssl_i2chunk(X509_CINF, this->x509->cert_info);
-	valid = key->verify(key, this->scheme, tbs,
-						openssl_asn1_str2chunk(this->x509->signature));
+#endif
+	X509_get0_signature(&sig, NULL, this->x509);
+	valid = key->verify(key, this->scheme, tbs, openssl_asn1_str2chunk(sig));
 	free(tbs.ptr);
 	key->destroy(key);
 	if (valid && scheme)
@@ -850,7 +875,7 @@ static void parse_ipAddrBlock_ext_fam(private_openssl_x509_t *this,
 		return;
 	}
 
-	afi = v3_addr_get_afi(fam);
+	afi = X509v3_addr_get_afi(fam);
 	switch (afi)
 	{
 		case IANA_AFI_IPV4:
@@ -871,7 +896,7 @@ static void parse_ipAddrBlock_ext_fam(private_openssl_x509_t *this,
 	for (i = 0; i < sk_IPAddressOrRange_num(list); i++)
 	{
 		aor = sk_IPAddressOrRange_value(list, i);
-		if (v3_addr_get_range(aor, afi, from.ptr, to.ptr, from.len) > 0)
+		if (X509v3_addr_get_range(aor, afi, from.ptr, to.ptr, from.len) > 0)
 		{
 			ts = traffic_selector_create_from_bytes(0, type, from, 0, to, 65535);
 			if (ts)
@@ -897,7 +922,7 @@ static bool parse_ipAddrBlock_ext(private_openssl_x509_t *this,
 		return FALSE;
 	}
 
-	if (!v3_addr_is_canonical(blocks))
+	if (!X509v3_addr_is_canonical(blocks))
 	{
 		sk_IPAddressFamily_free(blocks);
 		return FALSE;
@@ -964,7 +989,7 @@ static bool parse_extensions(private_openssl_x509_t *this)
 	STACK_OF(X509_EXTENSION) *extensions;
 	int i, num;
 
-	extensions = this->x509->cert_info->extensions;
+	extensions = X509_get0_extensions(this->x509);
 	if (extensions)
 	{
 		num = sk_X509_EXTENSION_num(extensions);
@@ -1041,6 +1066,8 @@ static bool parse_certificate(private_openssl_x509_t *this)
 	const unsigned char *ptr = this->encoding.ptr;
 	hasher_t *hasher;
 	chunk_t chunk;
+	ASN1_OBJECT *oid, *oid_tbs;
+	X509_ALGOR *alg;
 
 	this->x509 = d2i_X509(NULL, &ptr, this->encoding.len);
 	if (!this->x509)
@@ -1057,7 +1084,12 @@ static bool parse_certificate(private_openssl_x509_t *this)
 	this->subject = openssl_x509_name2id(X509_get_subject_name(this->x509));
 	this->issuer = openssl_x509_name2id(X509_get_issuer_name(this->x509));
 
-	switch (openssl_asn1_known_oid(this->x509->cert_info->key->algor->algorithm))
+	if (!X509_PUBKEY_get0_param(&oid, NULL, NULL, NULL,
+							    X509_get_X509_PUBKEY(this->x509)))
+	{
+		return FALSE;
+	}
+	switch (openssl_asn1_known_oid(oid))
 	{
 		case OID_RSA_ENCRYPTION:
 			this->pubkey = lib->creds->create(lib->creds,
@@ -1086,14 +1118,18 @@ static bool parse_certificate(private_openssl_x509_t *this)
 	this->notBefore = openssl_asn1_to_time(X509_get_notBefore(this->x509));
 	this->notAfter = openssl_asn1_to_time(X509_get_notAfter(this->x509));
 
-	if (!chunk_equals(
-			openssl_asn1_obj2chunk(this->x509->cert_info->signature->algorithm),
-			openssl_asn1_obj2chunk(this->x509->sig_alg->algorithm)))
+	/* while X509_ALGOR_cmp() is declared in the headers of older OpenSSL
+	 * versions, at least on Ubuntu 14.04 it is not actually defined */
+	X509_get0_signature(NULL, &alg, this->x509);
+	X509_ALGOR_get0(&oid, NULL, NULL, alg);
+	alg = X509_get0_tbs_sigalg(this->x509);
+	X509_ALGOR_get0(&oid_tbs, NULL, NULL, alg);
+	if (!chunk_equals(openssl_asn1_obj2chunk(oid),
+					  openssl_asn1_obj2chunk(oid_tbs)))
 	{
 		return FALSE;
 	}
-	this->scheme = signature_scheme_from_oid(openssl_asn1_known_oid(
-												this->x509->sig_alg->algorithm));
+	this->scheme = signature_scheme_from_oid(openssl_asn1_known_oid(oid));
 
 	if (!parse_extensions(this))
 	{