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a2471684da
linux/include/crypto
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Lukas Wunner a2471684da crypto: ecdsa - Move X9.62 signature size calculation into template 
software_key_query() returns the maximum signature and digest size for a
given key to user space.  When it only supported RSA keys, calculating
those sizes was trivial as they were always equivalent to the key size.

However when ECDSA was added, the function grew somewhat complicated
calculations which take the ASN.1 encoding and curve into account.
This doesn't scale well and adjusting the calculations is easily
forgotten when adding support for new encodings or curves.  In fact,
when NIST P521 support was recently added, the function was initially
not amended:

https://lore.kernel.org/all/b749d5ee-c3b8-4cbd-b252-7773e4536e07@linux.ibm.com/

Introduce a ->max_size() callback to struct sig_alg and take advantage
of it to move the signature size calculations to ecdsa-x962.c.

Introduce a ->digest_size() callback to struct sig_alg and move the
maximum ECDSA digest size to ecdsa.c.  It is common across ecdsa-x962.c
and the upcoming ecdsa-p1363.c and thus inherited by both of them.

For all other algorithms, continue using the key size as maximum
signature and digest size.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2024-10-05 13:22:04 +08:00
..
internal crypto: ecdsa - Move X9.62 signature decoding into template 2024-10-05 13:22:04 +08:00
acompress.h crypto: remove CONFIG_CRYPTO_STATS 2024-04-02 10:49:38 +08:00
aead.h crypto: remove CONFIG_CRYPTO_STATS 2024-04-02 10:49:38 +08:00
aes.h crypto: lib - implement library version of AES in CFB mode 2024-05-09 22:30:51 +03:00
akcipher.h crypto: akcipher - Drop sign/verify operations 2024-10-05 13:22:04 +08:00
algapi.h crypto: remove CONFIG_CRYPTO_STATS 2024-04-02 10:49:38 +08:00
arc4.h crypto: arc4 - refactor arc4 core code into separate library 2019-06-20 14:18:33 +08:00
aria.h crypto: Prepare to move crypto_tfm_ctx 2022-12-02 18:12:40 +08:00
authenc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
b128ops.h cyrpto/b128ops: Remove struct u128 2023-06-05 09:36:35 +02:00
blake2b.h crypto: api - Replace kernel.h with the necessary inclusions 2021-12-17 16:59:48 +11:00
blake2s.h lib/crypto: blake2s: move hmac construction into wireguard 2022-01-18 13:03:55 +01:00
blowfish.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cast5.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cast6.h crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
cast_common.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
chacha20poly1305.h crypto: lib/chacha20poly1305 - Add missing function declaration 2020-07-16 21:49:04 +10:00
chacha.h random: early initialization of ChaCha constants 2022-01-07 00:25:25 +01:00
cryptd.h crypto: api - Replace kernel.h with the necessary inclusions 2021-12-17 16:59:48 +11:00
ctr.h crypto: ctr - add helper for performing a CTR encryption walk 2019-07-26 14:56:07 +10:00
curve25519.h crypto: lib/curve25519 - Move selftest prototype into header file 2020-11-20 14:45:33 +11:00
des.h crypto: des - remove now unused __des3_ede_setkey() 2019-08-22 14:57:33 +10:00
dh.h crypto: dh - split out deserialization code from crypto_dh_decode() 2022-03-03 10:47:50 +12:00
drbg.h crypto: drbg - reseed 'nopr' drbgs periodically from get_random_bytes() 2021-11-26 16:16:50 +11:00
ecc_curve.h crypto: ecc - Add nbits field to ecc_curve structure 2024-04-12 15:07:52 +08:00
ecdh.h crypto: ecc - Add NIST P521 curve parameters 2024-04-12 15:07:52 +08:00
engine.h crypto: engine - Make crypto_engine_exit() return void 2023-10-01 16:28:15 +08:00
gcm.h crypto: lib/aesgcm - Provide minimal library implementation 2022-11-11 18:14:59 +08:00
gf128mul.h mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
ghash.h crypto: ghash - add comment and improve help text 2019-07-27 21:08:38 +10:00
hash_info.h crypto: FIPS 202 SHA-3 register in hash info for IMA 2023-10-27 18:04:30 +08:00
hash.h The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
hmac.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
if_alg.h net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
kdf_sp800108.h crypto: kdf - add SP800-108 counter key derivation function 2021-11-26 16:25:17 +11:00
kpp.h crypto: remove CONFIG_CRYPTO_STATS 2024-04-02 10:49:38 +08:00
md5.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nhpoly1305.h crypto: poly1305 - add new 32 and 64-bit generic versions 2020-01-16 15:18:12 +08:00
null.h crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
padlock.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pcrypt.h crypto: api - Replace kernel.h with the necessary inclusions 2021-12-17 16:59:48 +11:00
pkcs7.h PKCS#7: Introduce pkcs7_get_digest() 2019-08-05 18:40:19 -04:00
poly1305.h crypto: poly1305 - fix poly1305_core_setkey() declaration 2021-04-02 18:28:12 +11:00
polyval.h crypto: x86/polyval - Add PCLMULQDQ accelerated implementation of POLYVAL 2022-06-10 16:40:17 +08:00
public_key.h KEYS: include header for EINVAL definition 2024-01-26 16:39:32 +08:00
rng.h crypto: remove CONFIG_CRYPTO_STATS 2024-04-02 10:49:38 +08:00
scatterwalk.h crypto: scatterwalk - use kmap_local() not kmap_atomic() 2022-12-30 22:56:27 +08:00
serpent.h crypto: x86 - Regularize glue function prototypes 2019-12-11 16:36:54 +08:00
sha1_base.h crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
sha1.h crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
sha2.h crypto: lib/sha256 - Remove redundant and unused sha224_update 2023-05-19 16:45:43 +08:00
sha3.h crypto: sha3-generic - export init/update/final routines 2018-01-26 01:10:34 +11:00
sha256_base.h crypto: lib/sha256 - Use generic code from sha256_base 2023-05-19 16:45:43 +08:00
sha512_base.h crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
sig.h crypto: ecdsa - Move X9.62 signature size calculation into template 2024-10-05 13:22:04 +08:00
skcipher.h The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
sm3_base.h crypto: hash - Use memzero_explicit() for clearing state 2020-10-30 17:35:03 +11:00
sm3.h crypto: sm3 - make dependent on sm3 library 2022-01-28 16:51:11 +11:00
sm4.h crypto: sm4 - export sm4 constant arrays 2022-04-08 16:12:46 +08:00
streebog.h crypto: streebog - fix unaligned memory accesses 2019-04-08 14:42:55 +08:00
twofish.h crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
utils.h crypto: lib/utils - Move utilities into new header 2023-03-31 17:50:09 +08:00
xts.h crypto: xts - drop xts_check_key() 2023-01-06 17:15:47 +08:00