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-rw-r--r--include/olm/pk.h32
1 files changed, 26 insertions, 6 deletions
diff --git a/include/olm/pk.h b/include/olm/pk.h
index 3f77ef7..d41aa72 100644
--- a/include/olm/pk.h
+++ b/include/olm/pk.h
@@ -87,7 +87,7 @@ size_t olm_pk_encrypt(
void * ciphertext, size_t ciphertext_length,
void * mac, size_t mac_length,
void * ephemeral_key, size_t ephemeral_key_size,
- void * random, size_t random_length
+ const void * random, size_t random_length
);
typedef struct OlmPkDecryption OlmPkDecryption;
@@ -133,7 +133,7 @@ size_t olm_pk_generate_key_random_length(void);
size_t olm_pk_key_from_private(
OlmPkDecryption * decryption,
void * pubkey, size_t pubkey_length,
- void * privkey, size_t privkey_length
+ const void * privkey, size_t privkey_length
);
/** DEPRECATED: Use olm_pk_key_from_private
@@ -141,7 +141,7 @@ size_t olm_pk_key_from_private(
size_t olm_pk_generate_key(
OlmPkDecryption * decryption,
void * pubkey, size_t pubkey_length,
- void * privkey, size_t privkey_length
+ const void * privkey, size_t privkey_length
);
/** Returns the number of bytes needed to store a decryption object. */
@@ -230,19 +230,39 @@ size_t olm_clear_pk_signing(
);
/**
- * Initialise the signing object with a public/private keypair from a seed
+ * Initialise the signing object with a public/private keypair from a seed. The
+ * associated public key will be written to the pubkey buffer. Returns
+ * olm_error() on failure. If the public key buffer is too small then
+ * olm_pk_signing_last_error() will be "OUTPUT_BUFFER_TOO_SMALL". If the seed
+ * buffer is too small then olm_pk_signing_last_error() will be
+ * "INPUT_BUFFER_TOO_SMALL".
*/
size_t olm_pk_signing_key_from_seed(
OlmPkSigning * sign,
void * pubkey, size_t pubkey_length,
- void * seed, size_t seed_length
+ const void * seed, size_t seed_length
);
+/**
+ * The size required for the seed for initialising a signing object.
+ */
size_t olm_pk_signing_seed_length(void);
+
+/**
+ * The size of the public key of a signing object.
+ */
size_t olm_pk_signing_public_key_length(void);
-size_t olm_pk_signature_length();
+/**
+ * The size of a signature created by a signing object.
+ */
+size_t olm_pk_signature_length(void);
+/**
+ * Sign a message. The signature will be written to the signature
+ * buffer. Returns olm_error() on failure. If the signature buffer is too
+ * small, olm_pk_signing_last_error() will be "OUTPUT_BUFFER_TOO_SMALL".
+ */
size_t olm_pk_sign(
OlmPkSigning *sign,
uint8_t const * message, size_t message_length,