diff options
Diffstat (limited to 'include/olm/pk.h')
| -rw-r--r-- | include/olm/pk.h | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/include/olm/pk.h b/include/olm/pk.h index 1f3f9ff..8804d1f 100644 --- a/include/olm/pk.h +++ b/include/olm/pk.h @@ -72,11 +72,15 @@ size_t olm_pk_encrypt_random_length( ); /** Encrypt a plaintext for the recipient set using - * olm_pk_encryption_set_recipient_key. Returns olm_error() on failure. If the - * ciphertext, mac, or ephemeral_key buffers were too small then - * olm_pk_encryption_last_error() will be "OUTPUT_BUFFER_TOO_SMALL". If there - * weren't enough random bytes then olm_pk_encryption_last_error() will be - * "NOT_ENOUGH_RANDOM". */ + * olm_pk_encryption_set_recipient_key. Writes to the ciphertext, mac, and + * ephemeral_key buffers, whose values should be sent to the recipient. mac is + * a Message Authentication Code to ensure that the data is received and + * decrypted properly. ephemeral_key is the public part of the ephemeral key + * used (together with the recipient's key) to generate a symmetric encryption + * key. Returns olm_error() on failure. If the ciphertext, mac, or + * ephemeral_key buffers were too small then olm_pk_encryption_last_error() + * will be "OUTPUT_BUFFER_TOO_SMALL". If there weren't enough random bytes then + * olm_pk_encryption_last_error() will be "NOT_ENOUGH_RANDOM". */ size_t olm_pk_encrypt( OlmPkEncryption *encryption, void const * plaintext, size_t plaintext_length, @@ -111,9 +115,10 @@ size_t olm_clear_pk_decryption( /** The number of random bytes needed to generate a new key. */ size_t olm_pk_generate_key_random_length(void); -/** Generate a new key to use for decrypting messages. The associated public - * key will be written to the pubkey buffer. Returns olm_error() on failure. If - * the pubkey buffer is too small then olm_pk_decryption_last_error() will be +/** Generate a new key pair to use for decrypting messages. The private key is + * stored in the decryption object, and the associated public key will be + * written to the pubkey buffer. Returns olm_error() on failure. If the pubkey + * buffer is too small then olm_pk_decryption_last_error() will be * "OUTPUT_BUFFER_TOO_SMALL". If there weren't enough random bytes then * olm_pk_decryption_last_error() will be "NOT_ENOUGH_RANDOM". */ size_t olm_pk_generate_key( @@ -159,12 +164,13 @@ size_t olm_pk_max_plaintext_length( size_t ciphertext_length ); -/** Decrypt a ciphertext. The input ciphertext buffer is destroyed. Returns - * the length of the plaintext on success. Returns olm_error() on failure. If - * the plaintext buffer is too small then olm_pk_encryption_last_error() will - * be "OUTPUT_BUFFER_TOO_SMALL". */ +/** Decrypt a ciphertext. The input ciphertext buffer is destroyed. See the + * olm_pk_encrypt function for descriptions of the ephemeral_key and mac + * arguments. Returns the length of the plaintext on success. Returns + * olm_error() on failure. If the plaintext buffer is too small then + * olm_pk_encryption_last_error() will be "OUTPUT_BUFFER_TOO_SMALL". */ size_t olm_pk_decrypt( - OlmPkDecryption * decrytion, + OlmPkDecryption * decryption, void const * ephemeral_key, size_t ephemeral_key_length, void const * mac, size_t mac_length, void * ciphertext, size_t ciphertext_length, |