From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Sun, 17 Nov 2019 23:22:16 -0800 Subject: [PATCH] crypto: lib/chacha20poly1305 - use chacha20_crypt() commit 413808b71e6204b0cc1eeaa77960f7c3cd381d33 upstream. Use chacha20_crypt() instead of chacha_crypt(), since it's not really appropriate for users of the ChaCha library API to be passing the number of rounds as an argument. Signed-off-by: Eric Biggers Acked-by: Ard Biesheuvel Signed-off-by: Herbert Xu Signed-off-by: Jason A. Donenfeld --- lib/crypto/chacha20poly1305.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) --- a/lib/crypto/chacha20poly1305.c +++ b/lib/crypto/chacha20poly1305.c @@ -66,14 +66,14 @@ __chacha20poly1305_encrypt(u8 *dst, cons __le64 lens[2]; } b; - chacha_crypt(chacha_state, b.block0, pad0, sizeof(b.block0), 20); + chacha20_crypt(chacha_state, b.block0, pad0, sizeof(b.block0)); poly1305_init(&poly1305_state, b.block0); poly1305_update(&poly1305_state, ad, ad_len); if (ad_len & 0xf) poly1305_update(&poly1305_state, pad0, 0x10 - (ad_len & 0xf)); - chacha_crypt(chacha_state, dst, src, src_len, 20); + chacha20_crypt(chacha_state, dst, src, src_len); poly1305_update(&poly1305_state, dst, src_len); if (src_len & 0xf) @@ -140,7 +140,7 @@ __chacha20poly1305_decrypt(u8 *dst, cons if (unlikely(src_len < POLY1305_DIGEST_SIZE)) return false; - chacha_crypt(chacha_state, b.block0, pad0, sizeof(b.block0), 20); + chacha20_crypt(chacha_state, b.block0, pad0, sizeof(b.block0)); poly1305_init(&poly1305_state, b.block0); poly1305_update(&poly1305_state, ad, ad_len); @@ -160,7 +160,7 @@ __chacha20poly1305_decrypt(u8 *dst, cons ret = crypto_memneq(b.mac, src + dst_len, POLY1305_DIGEST_SIZE); if (likely(!ret)) - chacha_crypt(chacha_state, dst, src, dst_len, 20); + chacha20_crypt(chacha_state, dst, src, dst_len); memzero_explicit(&b, sizeof(b)); @@ -241,7 +241,7 @@ bool chacha20poly1305_crypt_sg_inplace(s b.iv[1] = cpu_to_le64(nonce); chacha_init(chacha_state, b.k, (u8 *)b.iv); - chacha_crypt(chacha_state, b.block0, pad0, sizeof(b.block0), 20); + chacha20_crypt(chacha_state, b.block0, pad0, sizeof(b.block0)); poly1305_init(&poly1305_state, b.block0); if (unlikely(ad_len)) { @@ -278,14 +278,14 @@ bool chacha20poly1305_crypt_sg_inplace(s if (unlikely(length < sl)) l &= ~(CHACHA_BLOCK_SIZE - 1); - chacha_crypt(chacha_state, addr, addr, l, 20); + chacha20_crypt(chacha_state, addr, addr, l); addr += l; length -= l; } if (unlikely(length > 0)) { - chacha_crypt(chacha_state, b.chacha_stream, pad0, - CHACHA_BLOCK_SIZE, 20); + chacha20_crypt(chacha_state, b.chacha_stream, pad0, + CHACHA_BLOCK_SIZE); crypto_xor(addr, b.chacha_stream, length); partial = length; }