diff options
Diffstat (limited to 'doc/gcrypt.texi')
| -rw-r--r-- | doc/gcrypt.texi | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/doc/gcrypt.texi b/doc/gcrypt.texi index b8ee4946..1f6ceec7 100644 --- a/doc/gcrypt.texi +++ b/doc/gcrypt.texi @@ -1642,6 +1642,12 @@ Counter with CBC-MAC mode is an Authenticated Encryption with Associated Data (AEAD) block cipher mode, which is specified in 'NIST Special Publication 800-38C' and RFC 3610. +@item GCRY_CIPHER_MODE_GCM +@cindex GCM, Galois/Counter Mode +Galois/Counter Mode (GCM) is an Authenticated Encryption with +Associated Data (AEAD) block cipher mode, which is specified in +'NIST Special Publication 800-38D'. + @end table @node Working with cipher handles @@ -1672,9 +1678,9 @@ with some algorithms - in particular, stream mode block cipher modes (@code{GCRY_CIPHER_MODE_ECB}, @code{GCRY_CIPHER_MODE_CBC}, @code{GCRY_CIPHER_MODE_CFB}, @code{GCRY_CIPHER_MODE_OFB} and @code{GCRY_CIPHER_MODE_CTR}) will work -with any block cipher algorithm. The @code{GCRY_CIPHER_MODE_CCM} will -only work with block cipher algorithms which have the block size of -16 bytes. +with any block cipher algorithm. @code{GCRY_CIPHER_MODE_CCM} and +@code{GCRY_CIPHER_MODE_GCM} modes will only work with block cipher algorithms +which have the block size of 16 bytes. The third argument @var{flags} can either be passed as @code{0} or as the bit-wise OR of the following constants. |