diff options
| author | Hubert Chathi <hubert@uhoreg.ca> | 2018-07-12 17:54:03 -0400 |
|---|---|---|
| committer | Hubert Chathi <hubert@uhoreg.ca> | 2018-10-05 10:35:09 -0400 |
| commit | 173339ae9accddd184bc83f2c23c5ffae3b08d00 (patch) | |
| tree | 9e66a254879f7dbf92067fac12972270f81843cd | |
| parent | bad14db8dadac46fef2c1c7094c92831b4bed0fb (diff) | |
add more comments describing the pk encrypt/decrypt functions
| -rw-r--r-- | include/olm/pk.h | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/include/olm/pk.h b/include/olm/pk.h index 07e6077..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, @@ -160,10 +164,11 @@ 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 * decryption, void const * ephemeral_key, size_t ephemeral_key_length, |