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| author | Ard Biesheuvel <ardb@kernel.org> | 2020-08-31 18:16:46 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-09-11 14:39:15 +1000 |
| commit | b2ba0476847381f6f60bcfbb77d6ebc5448a88f3 (patch) | |
| tree | c5f20760d1be845b724343618e2d813d2f2ea826 | |
| parent | e33d2a7b3041d7f8cd1f0a2a4ca42a5bc112b14e (diff) | |
| download | linux-b2ba0476847381f6f60bcfbb77d6ebc5448a88f3.tar.gz linux-b2ba0476847381f6f60bcfbb77d6ebc5448a88f3.tar.bz2 linux-b2ba0476847381f6f60bcfbb77d6ebc5448a88f3.zip | |
crypto: n2 - remove ecb(arc4) support
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/n2_core.c | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c index d8aec5153b21..8c8e17d5fb20 100644 --- a/drivers/crypto/n2_core.c +++ b/drivers/crypto/n2_core.c @@ -662,7 +662,6 @@ struct n2_skcipher_context { u8 aes[AES_MAX_KEY_SIZE]; u8 des[DES_KEY_SIZE]; u8 des3[3 * DES_KEY_SIZE]; - u8 arc4[258]; /* S-box, X, Y */ } key; }; @@ -789,36 +788,6 @@ static int n2_3des_setkey(struct crypto_skcipher *skcipher, const u8 *key, return 0; } -static int n2_arc4_setkey(struct crypto_skcipher *skcipher, const u8 *key, - unsigned int keylen) -{ - struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); - struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); - struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); - u8 *s = ctx->key.arc4; - u8 *x = s + 256; - u8 *y = x + 1; - int i, j, k; - - ctx->enc_type = n2alg->enc_type; - - j = k = 0; - *x = 0; - *y = 0; - for (i = 0; i < 256; i++) - s[i] = i; - for (i = 0; i < 256; i++) { - u8 a = s[i]; - j = (j + key[k] + a) & 0xff; - s[i] = s[j]; - s[j] = a; - if (++k >= keylen) - k = 0; - } - - return 0; -} - static inline int skcipher_descriptor_len(int nbytes, unsigned int block_size) { int this_len = nbytes; @@ -1122,21 +1091,6 @@ struct n2_skcipher_tmpl { }; static const struct n2_skcipher_tmpl skcipher_tmpls[] = { - /* ARC4: only ECB is supported (chaining bits ignored) */ - { .name = "ecb(arc4)", - .drv_name = "ecb-arc4", - .block_size = 1, - .enc_type = (ENC_TYPE_ALG_RC4_STREAM | - ENC_TYPE_CHAINING_ECB), - .skcipher = { - .min_keysize = 1, - .max_keysize = 256, - .setkey = n2_arc4_setkey, - .encrypt = n2_encrypt_ecb, - .decrypt = n2_decrypt_ecb, - }, - }, - /* DES: ECB CBC and CFB are supported */ { .name = "ecb(des)", .drv_name = "ecb-des", |