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Diffstat (limited to 'src/libstrongswan/crypto/signers/signer.h')
-rw-r--r--src/libstrongswan/crypto/signers/signer.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/libstrongswan/crypto/signers/signer.h b/src/libstrongswan/crypto/signers/signer.h
index 0f3709712..4218e4146 100644
--- a/src/libstrongswan/crypto/signers/signer.h
+++ b/src/libstrongswan/crypto/signers/signer.h
@@ -74,6 +74,9 @@ extern enum_name_t *integrity_algorithm_names;
struct signer_t {
/**
* @brief Generate a signature.
+ *
+ * If buffer is NULL, data is processed and prepended to a next call until
+ * buffer is a valid pointer.
*
* @param this calling object
* @param data a chunk containing the data to sign
@@ -83,6 +86,9 @@ struct signer_t {
/**
* @brief Generate a signature and allocate space for it.
+ *
+ * If chunk is NULL, data is processed and prepended to a next call until
+ * chunk is a valid chunk pointer.
*
* @param this calling object
* @param data a chunk containing the data to sign