diff options
| author | Gary Ching-Pang Lin <glin@suse.com> | 2015-07-28 11:46:38 -0400 |
|---|---|---|
| committer | Peter Jones <pjones@redhat.com> | 2015-07-28 11:46:38 -0400 |
| commit | 5ce38c90cf43ee79cd999716ea83a5a44eeb819e (patch) | |
| tree | 2fb3d9dd667c772fae5f87fa61e1501cf12da0ce /Cryptlib/OpenSSL/crypto/x509/x509_cmp.c | |
| parent | 69ba24ff72921ecabbb47178de40dc5a79350040 (diff) | |
| download | efi-boot-shim-5ce38c90cf43ee79cd999716ea83a5a44eeb819e.tar.gz efi-boot-shim-5ce38c90cf43ee79cd999716ea83a5a44eeb819e.zip | |
Update openssl to 1.0.2d
Also update Cryptlib to edk2 r17731
Signed-off-by: Gary Ching-Pang Lin <glin@suse.com>
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/x509/x509_cmp.c')
| -rw-r--r-- | Cryptlib/OpenSSL/crypto/x509/x509_cmp.c | 407 |
1 files changed, 240 insertions, 167 deletions
diff --git a/Cryptlib/OpenSSL/crypto/x509/x509_cmp.c b/Cryptlib/OpenSSL/crypto/x509/x509_cmp.c index de66d378..49c71b91 100644 --- a/Cryptlib/OpenSSL/crypto/x509/x509_cmp.c +++ b/Cryptlib/OpenSSL/crypto/x509/x509_cmp.c @@ -87,16 +87,21 @@ unsigned long X509_issuer_and_serial_hash(X509 *a) EVP_MD_CTX_init(&ctx); f = X509_NAME_oneline(a->cert_info->issuer, NULL, 0); - ret = strlen(f); - EVP_DigestInit_ex(&ctx, EVP_md5(), NULL); - EVP_DigestUpdate(&ctx, (unsigned char *)f, ret); + if (!EVP_DigestInit_ex(&ctx, EVP_md5(), NULL)) + goto err; + if (!EVP_DigestUpdate(&ctx, (unsigned char *)f, strlen(f))) + goto err; OPENSSL_free(f); - EVP_DigestUpdate(&ctx, (unsigned char *)a->cert_info->serialNumber->data, - (unsigned long)a->cert_info->serialNumber->length); - EVP_DigestFinal_ex(&ctx, &(md[0]), NULL); + if (!EVP_DigestUpdate + (&ctx, (unsigned char *)a->cert_info->serialNumber->data, + (unsigned long)a->cert_info->serialNumber->length)) + goto err; + if (!EVP_DigestFinal_ex(&ctx, &(md[0]), NULL)) + goto err; ret = (((unsigned long)md[0]) | ((unsigned long)md[1] << 8L) | ((unsigned long)md[2] << 16L) | ((unsigned long)md[3] << 24L) ) & 0xffffffffL; + err: EVP_MD_CTX_cleanup(&ctx); return (ret); } @@ -117,6 +122,13 @@ int X509_CRL_cmp(const X509_CRL *a, const X509_CRL *b) return (X509_NAME_cmp(a->crl->issuer, b->crl->issuer)); } +#ifndef OPENSSL_NO_SHA +int X509_CRL_match(const X509_CRL *a, const X509_CRL *b) +{ + return memcmp(a->sha1_hash, b->sha1_hash, 20); +} +#endif + X509_NAME *X509_get_issuer_name(X509 *a) { return (a->cert_info->issuer); @@ -127,6 +139,13 @@ unsigned long X509_issuer_name_hash(X509 *x) return (X509_NAME_hash(x->cert_info->issuer)); } +#ifndef OPENSSL_NO_MD5 +unsigned long X509_issuer_name_hash_old(X509 *x) +{ + return (X509_NAME_hash_old(x->cert_info->issuer)); +} +#endif + X509_NAME *X509_get_subject_name(X509 *a) { return (a->cert_info->subject); @@ -142,6 +161,13 @@ unsigned long X509_subject_name_hash(X509 *x) return (X509_NAME_hash(x->cert_info->subject)); } +#ifndef OPENSSL_NO_MD5 +unsigned long X509_subject_name_hash_old(X509 *x) +{ + return (X509_NAME_hash_old(x->cert_info->subject)); +} +#endif + #ifndef OPENSSL_NO_SHA /* * Compare two certificates: they must be identical for this to work. NB: @@ -153,161 +179,68 @@ unsigned long X509_subject_name_hash(X509 *x) */ int X509_cmp(const X509 *a, const X509 *b) { + int rv; /* ensure hash is valid */ X509_check_purpose((X509 *)a, -1, 0); X509_check_purpose((X509 *)b, -1, 0); - return memcmp(a->sha1_hash, b->sha1_hash, SHA_DIGEST_LENGTH); + rv = memcmp(a->sha1_hash, b->sha1_hash, SHA_DIGEST_LENGTH); + if (rv) + return rv; + /* Check for match against stored encoding too */ + if (!a->cert_info->enc.modified && !b->cert_info->enc.modified) { + rv = (int)(a->cert_info->enc.len - b->cert_info->enc.len); + if (rv) + return rv; + return memcmp(a->cert_info->enc.enc, b->cert_info->enc.enc, + a->cert_info->enc.len); + } + return rv; } #endif -/* Case insensitive string comparision */ -static int nocase_cmp(const ASN1_STRING *a, const ASN1_STRING *b) +int X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b) { - int i; + int ret; - if (a->length != b->length) - return (a->length - b->length); + /* Ensure canonical encoding is present and up to date */ - for (i = 0; i < a->length; i++) { - int ca, cb; - - ca = tolower(a->data[i]); - cb = tolower(b->data[i]); - - if (ca != cb) - return (ca - cb); + if (!a->canon_enc || a->modified) { + ret = i2d_X509_NAME((X509_NAME *)a, NULL); + if (ret < 0) + return -2; } - return 0; -} -/* - * Case insensitive string comparision with space normalization Space - * normalization - ignore leading, trailing spaces, multiple spaces between - * characters are replaced by single space - */ -static int nocase_spacenorm_cmp(const ASN1_STRING *a, const ASN1_STRING *b) -{ - unsigned char *pa = NULL, *pb = NULL; - int la, lb; - - la = a->length; - lb = b->length; - pa = a->data; - pb = b->data; - - /* skip leading spaces */ - while (la > 0 && isspace(*pa)) { - la--; - pa++; - } - while (lb > 0 && isspace(*pb)) { - lb--; - pb++; + if (!b->canon_enc || b->modified) { + ret = i2d_X509_NAME((X509_NAME *)b, NULL); + if (ret < 0) + return -2; } - /* skip trailing spaces */ - while (la > 0 && isspace(pa[la - 1])) - la--; - while (lb > 0 && isspace(pb[lb - 1])) - lb--; - - /* compare strings with space normalization */ - while (la > 0 && lb > 0) { - int ca, cb; - - /* compare character */ - ca = tolower(*pa); - cb = tolower(*pb); - if (ca != cb) - return (ca - cb); - - pa++; - pb++; - la--; - lb--; - - if (la <= 0 || lb <= 0) - break; - - /* is white space next character ? */ - if (isspace(*pa) && isspace(*pb)) { - /* skip remaining white spaces */ - while (la > 0 && isspace(*pa)) { - la--; - pa++; - } - while (lb > 0 && isspace(*pb)) { - lb--; - pb++; - } - } - } - if (la > 0 || lb > 0) - return la - lb; + ret = a->canon_enclen - b->canon_enclen; - return 0; -} + if (ret) + return ret; -static int asn1_string_memcmp(ASN1_STRING *a, ASN1_STRING *b) -{ - int j; - j = a->length - b->length; - if (j) - return j; - return memcmp(a->data, b->data, a->length); -} + return memcmp(a->canon_enc, b->canon_enc, a->canon_enclen); -#define STR_TYPE_CMP (B_ASN1_PRINTABLESTRING|B_ASN1_T61STRING|B_ASN1_UTF8STRING) +} -int X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b) +unsigned long X509_NAME_hash(X509_NAME *x) { - int i, j; - X509_NAME_ENTRY *na, *nb; - - unsigned long nabit, nbbit; - - j = sk_X509_NAME_ENTRY_num(a->entries) - - sk_X509_NAME_ENTRY_num(b->entries); - if (j) - return j; - for (i = sk_X509_NAME_ENTRY_num(a->entries) - 1; i >= 0; i--) { - na = sk_X509_NAME_ENTRY_value(a->entries, i); - nb = sk_X509_NAME_ENTRY_value(b->entries, i); - j = na->value->type - nb->value->type; - if (j) { - nabit = ASN1_tag2bit(na->value->type); - nbbit = ASN1_tag2bit(nb->value->type); - if (!(nabit & STR_TYPE_CMP) || !(nbbit & STR_TYPE_CMP)) - return j; - if (!asn1_string_memcmp(na->value, nb->value)) - j = 0; - } else if (na->value->type == V_ASN1_PRINTABLESTRING) - j = nocase_spacenorm_cmp(na->value, nb->value); - else if (na->value->type == V_ASN1_IA5STRING - && OBJ_obj2nid(na->object) == NID_pkcs9_emailAddress) - j = nocase_cmp(na->value, nb->value); - else - j = asn1_string_memcmp(na->value, nb->value); - if (j) - return (j); - j = na->set - nb->set; - if (j) - return (j); - } + unsigned long ret = 0; + unsigned char md[SHA_DIGEST_LENGTH]; - /* - * We will check the object types after checking the values since the - * values will more often be different than the object types. - */ - for (i = sk_X509_NAME_ENTRY_num(a->entries) - 1; i >= 0; i--) { - na = sk_X509_NAME_ENTRY_value(a->entries, i); - nb = sk_X509_NAME_ENTRY_value(b->entries, i); - j = OBJ_cmp(na->object, nb->object); - if (j) - return (j); - } - return (0); + /* Make sure X509_NAME structure contains valid cached encoding */ + i2d_X509_NAME(x, NULL); + if (!EVP_Digest(x->canon_enc, x->canon_enclen, md, NULL, EVP_sha1(), + NULL)) + return 0; + + ret = (((unsigned long)md[0]) | ((unsigned long)md[1] << 8L) | + ((unsigned long)md[2] << 16L) | ((unsigned long)md[3] << 24L) + ) & 0xffffffffL; + return (ret); } #ifndef OPENSSL_NO_MD5 @@ -315,24 +248,25 @@ int X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b) * I now DER encode the name and hash it. Since I cache the DER encoding, * this is reasonably efficient. */ -unsigned long X509_NAME_hash(X509_NAME *x) + +unsigned long X509_NAME_hash_old(X509_NAME *x) { + EVP_MD_CTX md_ctx; unsigned long ret = 0; unsigned char md[16]; - EVP_MD_CTX md_ctx; /* Make sure X509_NAME structure contains valid cached encoding */ i2d_X509_NAME(x, NULL); EVP_MD_CTX_init(&md_ctx); EVP_MD_CTX_set_flags(&md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); - EVP_DigestInit_ex(&md_ctx, EVP_md5(), NULL); - EVP_DigestUpdate(&md_ctx, x->bytes->data, x->bytes->length); - EVP_DigestFinal_ex(&md_ctx, md, NULL); + if (EVP_DigestInit_ex(&md_ctx, EVP_md5(), NULL) + && EVP_DigestUpdate(&md_ctx, x->bytes->data, x->bytes->length) + && EVP_DigestFinal_ex(&md_ctx, md, NULL)) + ret = (((unsigned long)md[0]) | ((unsigned long)md[1] << 8L) | + ((unsigned long)md[2] << 16L) | ((unsigned long)md[3] << 24L) + ) & 0xffffffffL; EVP_MD_CTX_cleanup(&md_ctx); - ret = (((unsigned long)md[0]) | ((unsigned long)md[1] << 8L) | - ((unsigned long)md[2] << 16L) | ((unsigned long)md[3] << 24L) - ) & 0xffffffffL; return (ret); } #endif @@ -389,13 +323,18 @@ ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x) int X509_check_private_key(X509 *x, EVP_PKEY *k) { - EVP_PKEY *xk = NULL; - int ok = 0; + EVP_PKEY *xk; + int ret; xk = X509_get_pubkey(x); - switch (EVP_PKEY_cmp(xk, k)) { + + if (xk) + ret = EVP_PKEY_cmp(xk, k); + else + ret = -2; + + switch (ret) { case 1: - ok = 1; break; case 0: X509err(X509_F_X509_CHECK_PRIVATE_KEY, X509_R_KEY_VALUES_MISMATCH); @@ -404,22 +343,156 @@ int X509_check_private_key(X509 *x, EVP_PKEY *k) X509err(X509_F_X509_CHECK_PRIVATE_KEY, X509_R_KEY_TYPE_MISMATCH); break; case -2: + X509err(X509_F_X509_CHECK_PRIVATE_KEY, X509_R_UNKNOWN_KEY_TYPE); + } + if (xk) + EVP_PKEY_free(xk); + if (ret > 0) + return 1; + return 0; +} + +/* + * Check a suite B algorithm is permitted: pass in a public key and the NID + * of its signature (or 0 if no signature). The pflags is a pointer to a + * flags field which must contain the suite B verification flags. + */ + #ifndef OPENSSL_NO_EC - if (k->type == EVP_PKEY_EC) { - X509err(X509_F_X509_CHECK_PRIVATE_KEY, ERR_R_EC_LIB); - break; - } -#endif -#ifndef OPENSSL_NO_DH - if (k->type == EVP_PKEY_DH) { - /* No idea */ - X509err(X509_F_X509_CHECK_PRIVATE_KEY, X509_R_CANT_CHECK_DH_KEY); - break; + +static int check_suite_b(EVP_PKEY *pkey, int sign_nid, unsigned long *pflags) +{ + const EC_GROUP *grp = NULL; + int curve_nid; + if (pkey && pkey->type == EVP_PKEY_EC) + grp = EC_KEY_get0_group(pkey->pkey.ec); + if (!grp) + return X509_V_ERR_SUITE_B_INVALID_ALGORITHM; + curve_nid = EC_GROUP_get_curve_name(grp); + /* Check curve is consistent with LOS */ + if (curve_nid == NID_secp384r1) { /* P-384 */ + /* + * Check signature algorithm is consistent with curve. + */ + if (sign_nid != -1 && sign_nid != NID_ecdsa_with_SHA384) + return X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM; + if (!(*pflags & X509_V_FLAG_SUITEB_192_LOS)) + return X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED; + /* If we encounter P-384 we cannot use P-256 later */ + *pflags &= ~X509_V_FLAG_SUITEB_128_LOS_ONLY; + } else if (curve_nid == NID_X9_62_prime256v1) { /* P-256 */ + if (sign_nid != -1 && sign_nid != NID_ecdsa_with_SHA256) + return X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM; + if (!(*pflags & X509_V_FLAG_SUITEB_128_LOS_ONLY)) + return X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED; + } else + return X509_V_ERR_SUITE_B_INVALID_CURVE; + + return X509_V_OK; +} + +int X509_chain_check_suiteb(int *perror_depth, X509 *x, STACK_OF(X509) *chain, + unsigned long flags) +{ + int rv, i, sign_nid; + EVP_PKEY *pk = NULL; + unsigned long tflags; + if (!(flags & X509_V_FLAG_SUITEB_128_LOS)) + return X509_V_OK; + tflags = flags; + /* If no EE certificate passed in must be first in chain */ + if (x == NULL) { + x = sk_X509_value(chain, 0); + i = 1; + } else + i = 0; + + if (X509_get_version(x) != 2) { + rv = X509_V_ERR_SUITE_B_INVALID_VERSION; + /* Correct error depth */ + i = 0; + goto end; + } + + pk = X509_get_pubkey(x); + /* Check EE key only */ + rv = check_suite_b(pk, -1, &tflags); + if (rv != X509_V_OK) { + /* Correct error depth */ + i = 0; + goto end; + } + for (; i < sk_X509_num(chain); i++) { + sign_nid = X509_get_signature_nid(x); + x = sk_X509_value(chain, i); + if (X509_get_version(x) != 2) { + rv = X509_V_ERR_SUITE_B_INVALID_VERSION; + goto end; } -#endif - X509err(X509_F_X509_CHECK_PRIVATE_KEY, X509_R_UNKNOWN_KEY_TYPE); + EVP_PKEY_free(pk); + pk = X509_get_pubkey(x); + rv = check_suite_b(pk, sign_nid, &tflags); + if (rv != X509_V_OK) + goto end; } - EVP_PKEY_free(xk); - return (ok); + /* Final check: root CA signature */ + rv = check_suite_b(pk, X509_get_signature_nid(x), &tflags); + end: + if (pk) + EVP_PKEY_free(pk); + if (rv != X509_V_OK) { + /* Invalid signature or LOS errors are for previous cert */ + if ((rv == X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM + || rv == X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED) && i) + i--; + /* + * If we have LOS error and flags changed then we are signing P-384 + * with P-256. Use more meaninggul error. + */ + if (rv == X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED && flags != tflags) + rv = X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256; + if (perror_depth) + *perror_depth = i; + } + return rv; +} + +int X509_CRL_check_suiteb(X509_CRL *crl, EVP_PKEY *pk, unsigned long flags) +{ + int sign_nid; + if (!(flags & X509_V_FLAG_SUITEB_128_LOS)) + return X509_V_OK; + sign_nid = OBJ_obj2nid(crl->crl->sig_alg->algorithm); + return check_suite_b(pk, sign_nid, &flags); +} + +#else +int X509_chain_check_suiteb(int *perror_depth, X509 *x, STACK_OF(X509) *chain, + unsigned long flags) +{ + return 0; +} + +int X509_CRL_check_suiteb(X509_CRL *crl, EVP_PKEY *pk, unsigned long flags) +{ + return 0; +} + +#endif +/* + * Not strictly speaking an "up_ref" as a STACK doesn't have a reference + * count but it has the same effect by duping the STACK and upping the ref of + * each X509 structure. + */ +STACK_OF(X509) *X509_chain_up_ref(STACK_OF(X509) *chain) +{ + STACK_OF(X509) *ret; + int i; + ret = sk_X509_dup(chain); + for (i = 0; i < sk_X509_num(ret); i++) { + X509 *x = sk_X509_value(ret, i); + CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509); + } + return ret; } |
