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author | Eric Biggers <ebiggers@google.com> | 2019-10-25 21:41:12 +0200 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-11-01 06:38:32 +0100 |
commit | c65058b7587fd3d001c57a50285477be521f5350 (patch) | |
tree | 2dbfbbedd874c0c15f65ab53238de22eef9012b1 /Documentation/crypto/architecture.rst | |
parent | crypto: skcipher - rename crypto_skcipher_type2 to crypto_skcipher_type (diff) | |
download | linux-c65058b7587fd3d001c57a50285477be521f5350.tar.xz linux-c65058b7587fd3d001c57a50285477be521f5350.zip |
crypto: skcipher - remove the "blkcipher" algorithm type
Now that all "blkcipher" algorithms have been converted to "skcipher",
remove the blkcipher algorithm type.
The skcipher (symmetric key cipher) algorithm type was introduced a few
years ago to replace both blkcipher and ablkcipher (synchronous and
asynchronous block cipher). The advantages of skcipher include:
- A much less confusing name, since none of these algorithm types have
ever actually been for raw block ciphers, but rather for all
length-preserving encryption modes including block cipher modes of
operation, stream ciphers, and other length-preserving modes.
- It unified blkcipher and ablkcipher into a single algorithm type
which supports both synchronous and asynchronous implementations.
Note, blkcipher already operated only on scatterlists, so the fact
that skcipher does too isn't a regression in functionality.
- Better type safety by using struct skcipher_alg, struct
crypto_skcipher, etc. instead of crypto_alg, crypto_tfm, etc.
- It sometimes simplifies the implementations of algorithms.
Also, the blkcipher API was no longer being tested.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'Documentation/crypto/architecture.rst')
-rw-r--r-- | Documentation/crypto/architecture.rst | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/Documentation/crypto/architecture.rst b/Documentation/crypto/architecture.rst index 3eae1ae7f798..da90bb006ab0 100644 --- a/Documentation/crypto/architecture.rst +++ b/Documentation/crypto/architecture.rst @@ -201,8 +201,6 @@ the aforementioned cipher types: - CRYPTO_ALG_TYPE_AEAD Authenticated Encryption with Associated Data (MAC) -- CRYPTO_ALG_TYPE_BLKCIPHER Synchronous multi-block cipher - - CRYPTO_ALG_TYPE_ABLKCIPHER Asynchronous multi-block cipher - CRYPTO_ALG_TYPE_KPP Key-agreement Protocol Primitive (KPP) such as |