add more comments describing the pk encrypt/decrypt functions
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1 changed files with 14 additions and 9 deletions
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@ -72,11 +72,15 @@ size_t olm_pk_encrypt_random_length(
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);
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/** Encrypt a plaintext for the recipient set using
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* olm_pk_encryption_set_recipient_key. Returns olm_error() on failure. If the
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* ciphertext, mac, or ephemeral_key buffers were too small then
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* olm_pk_encryption_last_error() will be "OUTPUT_BUFFER_TOO_SMALL". If there
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* weren't enough random bytes then olm_pk_encryption_last_error() will be
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* "NOT_ENOUGH_RANDOM". */
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* olm_pk_encryption_set_recipient_key. Writes to the ciphertext, mac, and
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* ephemeral_key buffers, whose values should be sent to the recipient. mac is
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* a Message Authentication Code to ensure that the data is received and
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* decrypted properly. ephemeral_key is the public part of the ephemeral key
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* used (together with the recipient's key) to generate a symmetric encryption
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* key. Returns olm_error() on failure. If the ciphertext, mac, or
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* ephemeral_key buffers were too small then olm_pk_encryption_last_error()
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* will be "OUTPUT_BUFFER_TOO_SMALL". If there weren't enough random bytes then
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* olm_pk_encryption_last_error() will be "NOT_ENOUGH_RANDOM". */
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size_t olm_pk_encrypt(
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OlmPkEncryption *encryption,
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void const * plaintext, size_t plaintext_length,
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@ -160,10 +164,11 @@ size_t olm_pk_max_plaintext_length(
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size_t ciphertext_length
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);
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/** Decrypt a ciphertext. The input ciphertext buffer is destroyed. Returns
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* the length of the plaintext on success. Returns olm_error() on failure. If
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* the plaintext buffer is too small then olm_pk_encryption_last_error() will
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* be "OUTPUT_BUFFER_TOO_SMALL". */
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/** Decrypt a ciphertext. The input ciphertext buffer is destroyed. See the
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* olm_pk_encrypt function for descriptions of the ephemeral_key and mac
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* arguments. Returns the length of the plaintext on success. Returns
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* olm_error() on failure. If the plaintext buffer is too small then
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* olm_pk_encryption_last_error() will be "OUTPUT_BUFFER_TOO_SMALL". */
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size_t olm_pk_decrypt(
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OlmPkDecryption * decryption,
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void const * ephemeral_key, size_t ephemeral_key_length,
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