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Diffstat (limited to 'Documentation/crypto/architecture.rst')
| -rw-r--r-- | Documentation/crypto/architecture.rst | 31 |
1 files changed, 5 insertions, 26 deletions
diff --git a/Documentation/crypto/architecture.rst b/Documentation/crypto/architecture.rst index ca2d09b991f5..ee8ff0762d7f 100644 --- a/Documentation/crypto/architecture.rst +++ b/Documentation/crypto/architecture.rst @@ -157,10 +157,6 @@ applicable to a cipher, it is not displayed: - rng for random number generator - - givcipher for cipher with associated IV generator (see the geniv - entry below for the specification of the IV generator type used by - the cipher implementation) - - kpp for a Key-agreement Protocol Primitive (KPP) cipher such as an ECDH or DH implementation @@ -174,16 +170,7 @@ applicable to a cipher, it is not displayed: - digestsize: output size of the message digest -- geniv: IV generation type: - - - eseqiv for encrypted sequence number based IV generation - - - seqiv for sequence number based IV generation - - - chainiv for chain iv generation - - - <builtin> is a marker that the cipher implements IV generation and - handling as it is specific to the given cipher +- geniv: IV generator (obsolete) Key Sizes --------- @@ -218,10 +205,6 @@ the aforementioned cipher types: - CRYPTO_ALG_TYPE_ABLKCIPHER Asynchronous multi-block cipher -- CRYPTO_ALG_TYPE_GIVCIPHER Asynchronous multi-block cipher packed - together with an IV generator (see geniv field in the /proc/crypto - listing for the known IV generators) - - CRYPTO_ALG_TYPE_KPP Key-agreement Protocol Primitive (KPP) such as an ECDH or DH implementation @@ -338,18 +321,14 @@ uses the API applicable to the cipher type specified for the block. The following call sequence is applicable when the IPSEC layer triggers an encryption operation with the esp_output function. During -configuration, the administrator set up the use of rfc4106(gcm(aes)) as -the cipher for ESP. The following call sequence is now depicted in the -ASCII art above: +configuration, the administrator set up the use of seqiv(rfc4106(gcm(aes))) +as the cipher for ESP. The following call sequence is now depicted in +the ASCII art above: 1. esp_output() invokes crypto_aead_encrypt() to trigger an encryption operation of the AEAD cipher with IV generator. - In case of GCM, the SEQIV implementation is registered as GIVCIPHER - in crypto_rfc4106_alloc(). - - The SEQIV performs its operation to generate an IV where the core - function is seqiv_geniv(). + The SEQIV generates the IV. 2. Now, SEQIV uses the AEAD API function calls to invoke the associated AEAD cipher. In our case, during the instantiation of SEQIV, the |