From nobody Sun Oct 5 14:37:49 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3047821D3CC; Sun, 3 Aug 2025 20:45:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754253935; cv=none; b=EWQK/T6F68F3GHyG0IrnaeO+RzZQeydCKO/mSM5/BPyRqzSy4GXs0Mdst3z/XzbJud5j40i/YyEXI3K1JmEzX02iYTLCjZVEFIQpZqeusqduvgDb7mMp61uUh5Cms9SWH8TZ/hgfIMzDjbr9Byda9Daf/sWygOSJphjid4K0BEs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754253935; c=relaxed/simple; bh=fiYchuo+RVrtqKxrjd7Ts9LYrhDRRyPxeI/QJOoy2Wc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rRMPzT2R5PsAgdEoDRs6iGn9sMB9a5p1pWQWsxpZBMahyhlHyFY7ds3vw4hclWtH+9Ubf2CiJqywPRBTDpMfA0KVAqRiH+Lf8em4eyIB5TZ55tK2qDuzTLNPjWSdKxFRd5Pth77lWsIk2+PWZoF3amaCm7riceom7RwnEWCvRqE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qc5jCx85; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qc5jCx85" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3293BC4CEFA; Sun, 3 Aug 2025 20:45:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754253934; bh=fiYchuo+RVrtqKxrjd7Ts9LYrhDRRyPxeI/QJOoy2Wc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qc5jCx85M84K5w05XqbmmSLpUlvcDdzhsi76Ie1v7XMMuYk1AQeJw5YbHFHeFXrGG f4xxtUWE/4niOZN8pPu1sGTskOJ2JdfhPZsffG8+KJko5RxKuQlr13CtjtV1xB4+wW vAUFR82FPtBfNh9+UiXjvvJSKH83f3ykc2iweGpLkE0mHkU+OIc2wUMhdNRX2TOWl6 CXCuSCQCOcQUn75tawLHOo/xQbgjFE5XjbXZHKTpbFqTcuO67MS89QBL3JwBJoP//l tWg4sY2tyj8uLNddvC1oFqWeE7j1DWwDG+emhb5Ygc+UZY54rR96dLdqqJjX7NZNSI uR4VwLHXj7e7g== From: Eric Biggers To: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Ard Biesheuvel , "Jason A . Donenfeld" , linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, Eric Biggers Subject: [PATCH 6/7] crypto: md5 - Wrap library and add HMAC support Date: Sun, 3 Aug 2025 13:44:32 -0700 Message-ID: <20250803204433.75703-7-ebiggers@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250803204433.75703-1-ebiggers@kernel.org> References: <20250803204433.75703-1-ebiggers@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Reimplement crypto/md5.c on top of the new MD5 library functions. Also add support for HMAC-MD5, again just wrapping the library functions. This closely mirrors crypto/sha1.c. Signed-off-by: Eric Biggers --- crypto/Kconfig | 2 +- crypto/md5.c | 359 ++++++++++++++++++-------------------- crypto/testmgr.c | 3 + drivers/crypto/img-hash.c | 2 +- 4 files changed, 171 insertions(+), 195 deletions(-) diff --git a/crypto/Kconfig b/crypto/Kconfig index 23bd98981ae8e..331c4fbb158b2 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -937,11 +937,11 @@ config CRYPTO_MD4 =20 config CRYPTO_MD5 tristate "MD5" select CRYPTO_HASH help - MD5 message digest algorithm (RFC1321) + MD5 message digest algorithm (RFC1321), including HMAC support. =20 config CRYPTO_MICHAEL_MIC tristate "Michael MIC" select CRYPTO_HASH help diff --git a/crypto/md5.c b/crypto/md5.c index 32c0819f51185..d05c53e6f3c2c 100644 --- a/crypto/md5.c +++ b/crypto/md5.c @@ -1,224 +1,197 @@ -/*=20 - * Cryptographic API. - * - * MD5 Message Digest Algorithm (RFC1321). - * - * Derived from cryptoapi implementation, originally based on the - * public domain implementation written by Colin Plumb in 1993. - * - * Copyright (c) Cryptoapi developers. - * Copyright (c) 2002 James Morris - *=20 - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the F= ree - * Software Foundation; either version 2 of the License, or (at your optio= n)=20 - * any later version. +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Crypto API support for MD5 and HMAC-MD5 * + * Copyright 2025 Google LLC */ #include #include #include #include -#include + +/* + * Export and import functions. crypto_shash wants a particular format th= at + * matches that used by some legacy drivers. It currently is the same as = the + * library MD5 context, except the value in bytecount must be block-aligne= d and + * the remainder must be stored in an extra u8 appended to the struct. + */ + +#define MD5_SHASH_STATE_SIZE (sizeof(struct md5_ctx) + 1) +static_assert(sizeof(struct md5_ctx) =3D=3D sizeof(struct md5_state)); +static_assert(offsetof(struct md5_ctx, state) =3D=3D offsetof(struct md5_s= tate, hash)); +static_assert(offsetof(struct md5_ctx, bytecount) =3D=3D offsetof(struct m= d5_state, byte_count)); +static_assert(offsetof(struct md5_ctx, buf) =3D=3D offsetof(struct md5_sta= te, block)); + +static int __crypto_md5_export(const struct md5_ctx *ctx0, void *out) +{ + struct md5_ctx ctx =3D *ctx0; + unsigned int partial; + u8 *p =3D out; + + partial =3D ctx.bytecount % MD5_BLOCK_SIZE; + ctx.bytecount -=3D partial; + memcpy(p, &ctx, sizeof(ctx)); + p +=3D sizeof(ctx); + *p =3D partial; + return 0; +} + +static int __crypto_md5_import(struct md5_ctx *ctx, const void *in) +{ + const u8 *p =3D in; + + memcpy(ctx, p, sizeof(*ctx)); + p +=3D sizeof(*ctx); + ctx->bytecount +=3D *p; + return 0; +} =20 const u8 md5_zero_message_hash[MD5_DIGEST_SIZE] =3D { 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04, 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e, }; EXPORT_SYMBOL_GPL(md5_zero_message_hash); =20 -#define F1(x, y, z) (z ^ (x & (y ^ z))) -#define F2(x, y, z) F1(z, x, y) -#define F3(x, y, z) (x ^ y ^ z) -#define F4(x, y, z) (y ^ (x | ~z)) - -#define MD5STEP(f, w, x, y, z, in, s) \ - (w +=3D f(x, y, z) + in, w =3D (w<>(32-s)) + x) - -static void md5_transform(__u32 *hash, __u32 const *in) -{ - u32 a, b, c, d; - - a =3D hash[0]; - b =3D hash[1]; - c =3D hash[2]; - d =3D hash[3]; - - MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); - MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); - MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); - MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); - MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); - MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); - MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); - MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); - MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); - MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); - MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); - MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); - MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); - MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); - MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); - MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); - - MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); - MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); - MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); - MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); - MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); - MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); - MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); - MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); - MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); - MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); - MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); - MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); - MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); - MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); - MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); - MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); - - MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); - MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); - MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); - MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); - MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); - MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); - MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); - MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); - MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); - MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); - MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); - MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); - MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); - MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); - MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); - MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); - - MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); - MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); - MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); - MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); - MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); - MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); - MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); - MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); - MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); - MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); - MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); - MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); - MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); - MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); - MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); - MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); - - hash[0] +=3D a; - hash[1] +=3D b; - hash[2] +=3D c; - hash[3] +=3D d; -} - -static inline void md5_transform_helper(struct md5_state *ctx, - u32 block[MD5_BLOCK_WORDS]) -{ - le32_to_cpu_array(block, MD5_BLOCK_WORDS); - md5_transform(ctx->hash, block); -} - -static int md5_init(struct shash_desc *desc) -{ - struct md5_state *mctx =3D shash_desc_ctx(desc); - - mctx->hash[0] =3D MD5_H0; - mctx->hash[1] =3D MD5_H1; - mctx->hash[2] =3D MD5_H2; - mctx->hash[3] =3D MD5_H3; - mctx->byte_count =3D 0; +#define MD5_CTX(desc) ((struct md5_ctx *)shash_desc_ctx(desc)) =20 +static int crypto_md5_init(struct shash_desc *desc) +{ + md5_init(MD5_CTX(desc)); return 0; } =20 -static int md5_update(struct shash_desc *desc, const u8 *data, unsigned in= t len) -{ - struct md5_state *mctx =3D shash_desc_ctx(desc); - u32 block[MD5_BLOCK_WORDS]; - - mctx->byte_count +=3D len; - do { - memcpy(block, data, sizeof(block)); - md5_transform_helper(mctx, block); - data +=3D sizeof(block); - len -=3D sizeof(block); - } while (len >=3D sizeof(block)); - memzero_explicit(block, sizeof(block)); - mctx->byte_count -=3D len; - return len; -} - -static int md5_finup(struct shash_desc *desc, const u8 *data, unsigned int= len, - u8 *out) -{ - struct md5_state *mctx =3D shash_desc_ctx(desc); - u32 block[MD5_BLOCK_WORDS]; - unsigned int offset; - int padding; - char *p; - - memcpy(block, data, len); - - offset =3D len; - p =3D (char *)block + offset; - padding =3D 56 - (offset + 1); - - *p++ =3D 0x80; - if (padding < 0) { - memset(p, 0x00, padding + sizeof (u64)); - md5_transform_helper(mctx, block); - p =3D (char *)block; - padding =3D 56; - } - - memset(p, 0, padding); - mctx->byte_count +=3D len; - block[14] =3D mctx->byte_count << 3; - block[15] =3D mctx->byte_count >> 29; - le32_to_cpu_array(block, (sizeof(block) - sizeof(u64)) / sizeof(u32)); - md5_transform(mctx->hash, block); - memzero_explicit(block, sizeof(block)); - cpu_to_le32_array(mctx->hash, sizeof(mctx->hash) / sizeof(u32)); - memcpy(out, mctx->hash, sizeof(mctx->hash)); +static int crypto_md5_update(struct shash_desc *desc, + const u8 *data, unsigned int len) +{ + md5_update(MD5_CTX(desc), data, len); + return 0; +} =20 +static int crypto_md5_final(struct shash_desc *desc, u8 *out) +{ + md5_final(MD5_CTX(desc), out); return 0; } =20 -static struct shash_alg alg =3D { - .digestsize =3D MD5_DIGEST_SIZE, - .init =3D md5_init, - .update =3D md5_update, - .finup =3D md5_finup, - .descsize =3D MD5_STATE_SIZE, - .base =3D { - .cra_name =3D "md5", - .cra_driver_name =3D "md5-generic", - .cra_flags =3D CRYPTO_AHASH_ALG_BLOCK_ONLY, - .cra_blocksize =3D MD5_HMAC_BLOCK_SIZE, - .cra_module =3D THIS_MODULE, - } -}; +static int crypto_md5_digest(struct shash_desc *desc, + const u8 *data, unsigned int len, u8 *out) +{ + md5(data, len, out); + return 0; +} + +static int crypto_md5_export(struct shash_desc *desc, void *out) +{ + return __crypto_md5_export(MD5_CTX(desc), out); +} + +static int crypto_md5_import(struct shash_desc *desc, const void *in) +{ + return __crypto_md5_import(MD5_CTX(desc), in); +} =20 -static int __init md5_mod_init(void) +#define HMAC_MD5_KEY(tfm) ((struct hmac_md5_key *)crypto_shash_ctx(tfm)) +#define HMAC_MD5_CTX(desc) ((struct hmac_md5_ctx *)shash_desc_ctx(desc)) + +static int crypto_hmac_md5_setkey(struct crypto_shash *tfm, + const u8 *raw_key, unsigned int keylen) +{ + hmac_md5_preparekey(HMAC_MD5_KEY(tfm), raw_key, keylen); + return 0; +} + +static int crypto_hmac_md5_init(struct shash_desc *desc) +{ + hmac_md5_init(HMAC_MD5_CTX(desc), HMAC_MD5_KEY(desc->tfm)); + return 0; +} + +static int crypto_hmac_md5_update(struct shash_desc *desc, + const u8 *data, unsigned int len) +{ + hmac_md5_update(HMAC_MD5_CTX(desc), data, len); + return 0; +} + +static int crypto_hmac_md5_final(struct shash_desc *desc, u8 *out) +{ + hmac_md5_final(HMAC_MD5_CTX(desc), out); + return 0; +} + +static int crypto_hmac_md5_digest(struct shash_desc *desc, + const u8 *data, unsigned int len, u8 *out) +{ + hmac_md5(HMAC_MD5_KEY(desc->tfm), data, len, out); + return 0; +} + +static int crypto_hmac_md5_export(struct shash_desc *desc, void *out) { - return crypto_register_shash(&alg); + return __crypto_md5_export(&HMAC_MD5_CTX(desc)->hash_ctx, out); } =20 -static void __exit md5_mod_fini(void) +static int crypto_hmac_md5_import(struct shash_desc *desc, const void *in) { - crypto_unregister_shash(&alg); + struct hmac_md5_ctx *ctx =3D HMAC_MD5_CTX(desc); + + ctx->ostate =3D HMAC_MD5_KEY(desc->tfm)->ostate; + return __crypto_md5_import(&ctx->hash_ctx, in); } =20 -module_init(md5_mod_init); -module_exit(md5_mod_fini); +static struct shash_alg algs[] =3D { + { + .base.cra_name =3D "md5", + .base.cra_driver_name =3D "md5-lib", + .base.cra_priority =3D 300, + .base.cra_blocksize =3D MD5_BLOCK_SIZE, + .base.cra_module =3D THIS_MODULE, + .digestsize =3D MD5_DIGEST_SIZE, + .init =3D crypto_md5_init, + .update =3D crypto_md5_update, + .final =3D crypto_md5_final, + .digest =3D crypto_md5_digest, + .export =3D crypto_md5_export, + .import =3D crypto_md5_import, + .descsize =3D sizeof(struct md5_ctx), + .statesize =3D MD5_SHASH_STATE_SIZE, + }, + { + .base.cra_name =3D "hmac(md5)", + .base.cra_driver_name =3D "hmac-md5-lib", + .base.cra_priority =3D 300, + .base.cra_blocksize =3D MD5_BLOCK_SIZE, + .base.cra_ctxsize =3D sizeof(struct hmac_md5_key), + .base.cra_module =3D THIS_MODULE, + .digestsize =3D MD5_DIGEST_SIZE, + .setkey =3D crypto_hmac_md5_setkey, + .init =3D crypto_hmac_md5_init, + .update =3D crypto_hmac_md5_update, + .final =3D crypto_hmac_md5_final, + .digest =3D crypto_hmac_md5_digest, + .export =3D crypto_hmac_md5_export, + .import =3D crypto_hmac_md5_import, + .descsize =3D sizeof(struct hmac_md5_ctx), + .statesize =3D MD5_SHASH_STATE_SIZE, + }, +}; + +static int __init crypto_md5_mod_init(void) +{ + return crypto_register_shashes(algs, ARRAY_SIZE(algs)); +} +module_init(crypto_md5_mod_init); + +static void __exit crypto_md5_mod_exit(void) +{ + crypto_unregister_shashes(algs, ARRAY_SIZE(algs)); +} +module_exit(crypto_md5_mod_exit); =20 MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("MD5 Message Digest Algorithm"); +MODULE_DESCRIPTION("Crypto API support for MD5 and HMAC-MD5"); + MODULE_ALIAS_CRYPTO("md5"); +MODULE_ALIAS_CRYPTO("md5-lib"); +MODULE_ALIAS_CRYPTO("hmac(md5)"); +MODULE_ALIAS_CRYPTO("hmac-md5-lib"); diff --git a/crypto/testmgr.c b/crypto/testmgr.c index ee33ba21ae2bc..beab926ba102e 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -4176,10 +4176,11 @@ static const struct alg_test_desc alg_test_descs[] = =3D { .suite =3D { .cprng =3D __VECS(ansi_cprng_aes_tv_template) } }, { .alg =3D "authenc(hmac(md5),ecb(cipher_null))", + .generic_driver =3D "authenc(hmac-md5-lib,ecb-cipher_null)", .test =3D alg_test_aead, .suite =3D { .aead =3D __VECS(hmac_md5_ecb_cipher_null_tv_template) } }, { @@ -5062,10 +5063,11 @@ static const struct alg_test_desc alg_test_descs[] = =3D { .suite =3D { .cipher =3D __VECS(aes_hctr2_tv_template) } }, { .alg =3D "hmac(md5)", + .generic_driver =3D "hmac-md5-lib", .test =3D alg_test_hash, .suite =3D { .hash =3D __VECS(hmac_md5_tv_template) } }, { @@ -5248,10 +5250,11 @@ static const struct alg_test_desc alg_test_descs[] = =3D { .suite =3D { .hash =3D __VECS(md4_tv_template) } }, { .alg =3D "md5", + .generic_driver =3D "md5-lib", .test =3D alg_test_hash, .suite =3D { .hash =3D __VECS(md5_tv_template) } }, { diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c index 76b7ecb5624b1..f22c12e36b56c 100644 --- a/drivers/crypto/img-hash.c +++ b/drivers/crypto/img-hash.c @@ -698,11 +698,11 @@ static int img_hash_cra_init(struct crypto_tfm *tfm, = const char *alg_name) return 0; } =20 static int img_hash_cra_md5_init(struct crypto_tfm *tfm) { - return img_hash_cra_init(tfm, "md5-generic"); + return img_hash_cra_init(tfm, "md5-lib"); } =20 static int img_hash_cra_sha1_init(struct crypto_tfm *tfm) { return img_hash_cra_init(tfm, "sha1-lib"); --=20 2.50.1