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Commit ce05ffe1 authored by Christian Lamparter's avatar Christian Lamparter Committed by Herbert Xu
Browse files

crypto: crypto4xx - convert to skcipher 

The ablkcipher APIs have been effectively deprecated since [1].
This patch converts the crypto4xx driver to the new skcipher APIs.

[1] <https://www.spinics.net/lists/linux-crypto/msg18133.html

>

Signed-off-by: default avatarChristian Lamparter <chunkeey@gmail.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent a8d79d7b

drivers/crypto/amcc/crypto4xx_alg.c

+31 −29
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
#include <crypto/gcm.h>

#include <crypto/sha.h>

#include <crypto/ctr.h>

#include <crypto/skcipher.h>

#include "crypto4xx_reg_def.h"

#include "crypto4xx_core.h"

#include "crypto4xx_sa.h"
@@ -74,36 +75,37 @@ static void set_dynamic_sa_command_1(struct dynamic_sa_ctl *sa, u32 cm, 
	sa->sa_command_1.bf.copy_hdr = cp_hdr;

}



static inline int crypto4xx_crypt(struct ablkcipher_request *req,

static inline int crypto4xx_crypt(struct skcipher_request *req,

				  const unsigned int ivlen, bool decrypt)

{

	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);

	struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);

	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);

	__le32 iv[ivlen];



	if (ivlen)

		crypto4xx_memcpy_to_le32(iv, req->info, ivlen);

		crypto4xx_memcpy_to_le32(iv, req->iv, ivlen);



	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,

		req->nbytes, iv, ivlen, decrypt ? ctx->sa_in : ctx->sa_out,

		req->cryptlen, iv, ivlen, decrypt ? ctx->sa_in : ctx->sa_out,

		ctx->sa_len, 0);

}



int crypto4xx_encrypt_noiv(struct ablkcipher_request *req)

int crypto4xx_encrypt_noiv(struct skcipher_request *req)

{

	return crypto4xx_crypt(req, 0, false);

}



int crypto4xx_encrypt_iv(struct ablkcipher_request *req)

int crypto4xx_encrypt_iv(struct skcipher_request *req)

{

	return crypto4xx_crypt(req, AES_IV_SIZE, false);

}



int crypto4xx_decrypt_noiv(struct ablkcipher_request *req)

int crypto4xx_decrypt_noiv(struct skcipher_request *req)

{

	return crypto4xx_crypt(req, 0, true);

}



int crypto4xx_decrypt_iv(struct ablkcipher_request *req)

int crypto4xx_decrypt_iv(struct skcipher_request *req)

{

	return crypto4xx_crypt(req, AES_IV_SIZE, true);

}
@@ -111,20 +113,19 @@ int crypto4xx_decrypt_iv(struct ablkcipher_request *req) 
/**

 * AES Functions

 */

static int crypto4xx_setkey_aes(struct crypto_ablkcipher *cipher,

static int crypto4xx_setkey_aes(struct crypto_skcipher *cipher,

				const u8 *key,

				unsigned int keylen,

				unsigned char cm,

				u8 fb)

{

	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);

	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);

	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);

	struct dynamic_sa_ctl *sa;

	int    rc;



	if (keylen != AES_KEYSIZE_256 &&

		keylen != AES_KEYSIZE_192 && keylen != AES_KEYSIZE_128) {

		crypto_ablkcipher_set_flags(cipher,

		crypto_skcipher_set_flags(cipher,

				CRYPTO_TFM_RES_BAD_KEY_LEN);

		return -EINVAL;

	}
@@ -164,39 +165,38 @@ static int crypto4xx_setkey_aes(struct crypto_ablkcipher *cipher, 
	return 0;

}



int crypto4xx_setkey_aes_cbc(struct crypto_ablkcipher *cipher,

int crypto4xx_setkey_aes_cbc(struct crypto_skcipher *cipher,

			     const u8 *key, unsigned int keylen)

{

	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_CBC,

				    CRYPTO_FEEDBACK_MODE_NO_FB);

}



int crypto4xx_setkey_aes_cfb(struct crypto_ablkcipher *cipher,

int crypto4xx_setkey_aes_cfb(struct crypto_skcipher *cipher,

			     const u8 *key, unsigned int keylen)

{

	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_CFB,

				    CRYPTO_FEEDBACK_MODE_128BIT_CFB);

}



int crypto4xx_setkey_aes_ecb(struct crypto_ablkcipher *cipher,

int crypto4xx_setkey_aes_ecb(struct crypto_skcipher *cipher,

			     const u8 *key, unsigned int keylen)

{

	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_ECB,

				    CRYPTO_FEEDBACK_MODE_NO_FB);

}



int crypto4xx_setkey_aes_ofb(struct crypto_ablkcipher *cipher,

int crypto4xx_setkey_aes_ofb(struct crypto_skcipher *cipher,

			     const u8 *key, unsigned int keylen)

{

	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_OFB,

				    CRYPTO_FEEDBACK_MODE_64BIT_OFB);

}



int crypto4xx_setkey_rfc3686(struct crypto_ablkcipher *cipher,

int crypto4xx_setkey_rfc3686(struct crypto_skcipher *cipher,

			     const u8 *key, unsigned int keylen)

{

	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);

	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);

	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);

	int rc;



	rc = crypto4xx_setkey_aes(cipher, key, keylen - CTR_RFC3686_NONCE_SIZE,
@@ -210,31 +210,33 @@ int crypto4xx_setkey_rfc3686(struct crypto_ablkcipher *cipher, 
	return 0;

}



int crypto4xx_rfc3686_encrypt(struct ablkcipher_request *req)

int crypto4xx_rfc3686_encrypt(struct skcipher_request *req)

{

	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);

	struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);

	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);

	__le32 iv[AES_IV_SIZE / 4] = {

		ctx->iv_nonce,

		cpu_to_le32p((u32 *) req->info),

		cpu_to_le32p((u32 *) (req->info + 4)),

		cpu_to_le32p((u32 *) req->iv),

		cpu_to_le32p((u32 *) (req->iv + 4)),

		cpu_to_le32(1) };



	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,

				  req->nbytes, iv, AES_IV_SIZE,

				  req->cryptlen, iv, AES_IV_SIZE,

				  ctx->sa_out, ctx->sa_len, 0);

}



int crypto4xx_rfc3686_decrypt(struct ablkcipher_request *req)

int crypto4xx_rfc3686_decrypt(struct skcipher_request *req)

{

	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);

	struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);

	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);

	__le32 iv[AES_IV_SIZE / 4] = {

		ctx->iv_nonce,

		cpu_to_le32p((u32 *) req->info),

		cpu_to_le32p((u32 *) (req->info + 4)),

		cpu_to_le32p((u32 *) req->iv),

		cpu_to_le32p((u32 *) (req->iv + 4)),

		cpu_to_le32(1) };



	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,

				  req->nbytes, iv, AES_IV_SIZE,

				  req->cryptlen, iv, AES_IV_SIZE,

				  ctx->sa_out, ctx->sa_len, 0);

}

drivers/crypto/amcc/crypto4xx_core.c

+119 −136
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ 
#include <crypto/gcm.h>

#include <crypto/sha.h>

#include <crypto/scatterwalk.h>

#include <crypto/skcipher.h>

#include <crypto/internal/aead.h>

#include <crypto/internal/skcipher.h>

#include "crypto4xx_reg_def.h"
@@ -526,21 +527,19 @@ static void crypto4xx_ret_sg_desc(struct crypto4xx_device *dev, 
	}

}



static void crypto4xx_ablkcipher_done(struct crypto4xx_device *dev,

static void crypto4xx_cipher_done(struct crypto4xx_device *dev,

				     struct pd_uinfo *pd_uinfo,

				     struct ce_pd *pd)

{

	struct crypto4xx_ctx *ctx;

	struct ablkcipher_request *ablk_req;

	struct skcipher_request *req;

	struct scatterlist *dst;

	dma_addr_t addr;



	ablk_req = ablkcipher_request_cast(pd_uinfo->async_req);

	ctx  = crypto_tfm_ctx(ablk_req->base.tfm);

	req = skcipher_request_cast(pd_uinfo->async_req);



	if (pd_uinfo->using_sd) {

		crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo, ablk_req->nbytes,

					  ablk_req->dst);

		crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo,

					  req->cryptlen, req->dst);

	} else {

		dst = pd_uinfo->dest_va;

		addr = dma_map_page(dev->core_dev->device, sg_page(dst),
@@ -549,8 +548,8 @@ static void crypto4xx_ablkcipher_done(struct crypto4xx_device *dev, 
	crypto4xx_ret_sg_desc(dev, pd_uinfo);



	if (pd_uinfo->state & PD_ENTRY_BUSY)

		ablkcipher_request_complete(ablk_req, -EINPROGRESS);

	ablkcipher_request_complete(ablk_req, 0);

		skcipher_request_complete(req, -EINPROGRESS);

	skcipher_request_complete(req, 0);

}



static void crypto4xx_ahash_done(struct crypto4xx_device *dev,
@@ -641,8 +640,8 @@ static void crypto4xx_pd_done(struct crypto4xx_device *dev, u32 idx) 
	struct pd_uinfo *pd_uinfo = &dev->pdr_uinfo[idx];



	switch (crypto_tfm_alg_type(pd_uinfo->async_req->tfm)) {

	case CRYPTO_ALG_TYPE_ABLKCIPHER:

		crypto4xx_ablkcipher_done(dev, pd_uinfo, pd);

	case CRYPTO_ALG_TYPE_SKCIPHER:

		crypto4xx_cipher_done(dev, pd_uinfo, pd);

		break;

	case CRYPTO_ALG_TYPE_AEAD:

		crypto4xx_aead_done(dev, pd_uinfo, pd);
@@ -936,15 +935,14 @@ static void crypto4xx_ctx_init(struct crypto4xx_alg *amcc_alg, 
	ctx->sa_len = 0;

}



static int crypto4xx_ablk_init(struct crypto_tfm *tfm)

static int crypto4xx_sk_init(struct crypto_skcipher *sk)

{

	struct crypto_alg *alg = tfm->__crt_alg;

	struct skcipher_alg *alg = crypto_skcipher_alg(sk);

	struct crypto4xx_alg *amcc_alg;

	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);

	struct crypto4xx_ctx *ctx =  crypto_skcipher_ctx(sk);



	amcc_alg = container_of(alg, struct crypto4xx_alg, alg.u.cipher);

	crypto4xx_ctx_init(amcc_alg, ctx);

	tfm->crt_ablkcipher.reqsize = sizeof(struct crypto4xx_ctx);

	return 0;

}
@@ -953,9 +951,11 @@ static void crypto4xx_common_exit(struct crypto4xx_ctx *ctx) 
	crypto4xx_free_sa(ctx);

}



static void crypto4xx_ablk_exit(struct crypto_tfm *tfm)

static void crypto4xx_sk_exit(struct crypto_skcipher *sk)

{

	crypto4xx_common_exit(crypto_tfm_ctx(tfm));

	struct crypto4xx_ctx *ctx =  crypto_skcipher_ctx(sk);



	crypto4xx_common_exit(ctx);

}



static int crypto4xx_aead_init(struct crypto_aead *tfm)
@@ -1012,7 +1012,7 @@ static int crypto4xx_register_alg(struct crypto4xx_device *sec_dev, 
			break;



		default:

			rc = crypto_register_alg(&alg->alg.u.cipher);

			rc = crypto_register_skcipher(&alg->alg.u.cipher);

			break;

		}
@@ -1041,7 +1041,7 @@ static void crypto4xx_unregister_alg(struct crypto4xx_device *sec_dev) 
			break;



		default:

			crypto_unregister_alg(&alg->alg.u.cipher);

			crypto_unregister_skcipher(&alg->alg.u.cipher);

		}

		kfree(alg);

	}
@@ -1103,126 +1103,109 @@ static irqreturn_t crypto4xx_ce_interrupt_handler_revb(int irq, void *data) 
 */

static struct crypto4xx_alg_common crypto4xx_alg[] = {

	/* Crypto AES modes */

	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {

	{ .type = CRYPTO_ALG_TYPE_SKCIPHER, .u.cipher = {

		.base = {

			.cra_name = "cbc(aes)",

			.cra_driver_name = "cbc-aes-ppc4xx",

			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,

		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |

			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |

				CRYPTO_ALG_ASYNC |

				CRYPTO_ALG_KERN_DRIVER_ONLY,

			.cra_blocksize = AES_BLOCK_SIZE,

			.cra_ctxsize = sizeof(struct crypto4xx_ctx),

		.cra_type 	= &crypto_ablkcipher_type,

		.cra_init	= crypto4xx_ablk_init,

		.cra_exit	= crypto4xx_ablk_exit,

			.cra_module = THIS_MODULE,

		.cra_u 		= {

			.ablkcipher = {

		},

		.min_keysize = AES_MIN_KEY_SIZE,

		.max_keysize = AES_MAX_KEY_SIZE,

		.ivsize	= AES_IV_SIZE,

		.setkey = crypto4xx_setkey_aes_cbc,

		.encrypt = crypto4xx_encrypt_iv,

		.decrypt = crypto4xx_decrypt_iv,

			}

		}

		.init = crypto4xx_sk_init,

		.exit = crypto4xx_sk_exit,

	} },

	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {

	{ .type = CRYPTO_ALG_TYPE_SKCIPHER, .u.cipher = {

		.base = {

			.cra_name = "cfb(aes)",

			.cra_driver_name = "cfb-aes-ppc4xx",

			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,

		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |

			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |

				CRYPTO_ALG_ASYNC |

				CRYPTO_ALG_KERN_DRIVER_ONLY,

			.cra_blocksize = AES_BLOCK_SIZE,

			.cra_ctxsize = sizeof(struct crypto4xx_ctx),

		.cra_type	= &crypto_ablkcipher_type,

		.cra_init	= crypto4xx_ablk_init,

		.cra_exit	= crypto4xx_ablk_exit,

			.cra_module = THIS_MODULE,

		.cra_u		= {

			.ablkcipher = {

		},

		.min_keysize = AES_MIN_KEY_SIZE,

		.max_keysize = AES_MAX_KEY_SIZE,

		.ivsize	= AES_IV_SIZE,

		.setkey	= crypto4xx_setkey_aes_cfb,

		.encrypt = crypto4xx_encrypt_iv,

		.decrypt = crypto4xx_decrypt_iv,

			}

		}

		.init = crypto4xx_sk_init,

		.exit = crypto4xx_sk_exit,

	} },

	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {

	{ .type = CRYPTO_ALG_TYPE_SKCIPHER, .u.cipher = {

		.base = {

			.cra_name = "rfc3686(ctr(aes))",

			.cra_driver_name = "rfc3686-ctr-aes-ppc4xx",

			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,

		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |

			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |

				CRYPTO_ALG_ASYNC |

				CRYPTO_ALG_KERN_DRIVER_ONLY,

			.cra_blocksize = AES_BLOCK_SIZE,

			.cra_ctxsize = sizeof(struct crypto4xx_ctx),

		.cra_type	= &crypto_ablkcipher_type,

		.cra_init	= crypto4xx_ablk_init,

		.cra_exit	= crypto4xx_ablk_exit,

			.cra_module = THIS_MODULE,

		.cra_u		= {

			.ablkcipher = {

				.min_keysize	= AES_MIN_KEY_SIZE +

						  CTR_RFC3686_NONCE_SIZE,

				.max_keysize	= AES_MAX_KEY_SIZE +

						  CTR_RFC3686_NONCE_SIZE,

		},

		.min_keysize = AES_MIN_KEY_SIZE + CTR_RFC3686_NONCE_SIZE,

		.max_keysize = AES_MAX_KEY_SIZE + CTR_RFC3686_NONCE_SIZE,

		.ivsize	= CTR_RFC3686_IV_SIZE,

		.setkey = crypto4xx_setkey_rfc3686,

		.encrypt = crypto4xx_rfc3686_encrypt,

		.decrypt = crypto4xx_rfc3686_decrypt,

			}

		}

		.init = crypto4xx_sk_init,

		.exit = crypto4xx_sk_exit,

	} },

	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {

	{ .type = CRYPTO_ALG_TYPE_SKCIPHER, .u.cipher = {

		.base = {

			.cra_name = "ecb(aes)",

			.cra_driver_name = "ecb-aes-ppc4xx",

			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,

		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |

			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |

				CRYPTO_ALG_ASYNC |

				CRYPTO_ALG_KERN_DRIVER_ONLY,

			.cra_blocksize = AES_BLOCK_SIZE,

			.cra_ctxsize = sizeof(struct crypto4xx_ctx),

		.cra_type	= &crypto_ablkcipher_type,

		.cra_init	= crypto4xx_ablk_init,

		.cra_exit	= crypto4xx_ablk_exit,

			.cra_module = THIS_MODULE,

		.cra_u		= {

			.ablkcipher = {

		},

		.min_keysize = AES_MIN_KEY_SIZE,

		.max_keysize = AES_MAX_KEY_SIZE,

		.setkey	= crypto4xx_setkey_aes_ecb,

		.encrypt = crypto4xx_encrypt_noiv,

		.decrypt = crypto4xx_decrypt_noiv,

			}

		}

		.init = crypto4xx_sk_init,

		.exit = crypto4xx_sk_exit,

	} },

	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {

	{ .type = CRYPTO_ALG_TYPE_SKCIPHER, .u.cipher = {

		.base = {

			.cra_name = "ofb(aes)",

			.cra_driver_name = "ofb-aes-ppc4xx",

			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,

		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |

			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |

				CRYPTO_ALG_ASYNC |

				CRYPTO_ALG_KERN_DRIVER_ONLY,

			.cra_blocksize = AES_BLOCK_SIZE,

			.cra_ctxsize = sizeof(struct crypto4xx_ctx),

		.cra_type	= &crypto_ablkcipher_type,

		.cra_init	= crypto4xx_ablk_init,

		.cra_exit	= crypto4xx_ablk_exit,

			.cra_module = THIS_MODULE,

		.cra_u		= {

			.ablkcipher = {

		},

		.min_keysize = AES_MIN_KEY_SIZE,

		.max_keysize = AES_MAX_KEY_SIZE,

		.ivsize	= AES_IV_SIZE,

		.setkey	= crypto4xx_setkey_aes_ofb,

		.encrypt = crypto4xx_encrypt_iv,

		.decrypt = crypto4xx_decrypt_iv,

			}

		}

		.init = crypto4xx_sk_init,

		.exit = crypto4xx_sk_exit,

	} },



	/* AEAD */

drivers/crypto/amcc/crypto4xx_core.h

+13 −12
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <linux/ratelimit.h>

#include <crypto/internal/hash.h>

#include <crypto/internal/aead.h>

#include <crypto/internal/skcipher.h>

#include "crypto4xx_reg_def.h"

#include "crypto4xx_sa.h"
@@ -134,7 +135,7 @@ struct crypto4xx_ctx { 
struct crypto4xx_alg_common {

	u32 type;

	union {

		struct crypto_alg cipher;

		struct skcipher_alg cipher;

		struct ahash_alg hash;

		struct aead_alg aead;

	} u;
@@ -158,22 +159,22 @@ int crypto4xx_build_pd(struct crypto_async_request *req, 
		       const struct dynamic_sa_ctl *sa,

		       const unsigned int sa_len,

		       const unsigned int assoclen);

int crypto4xx_setkey_aes_cbc(struct crypto_ablkcipher *cipher,

int crypto4xx_setkey_aes_cbc(struct crypto_skcipher *cipher,

			     const u8 *key, unsigned int keylen);

int crypto4xx_setkey_aes_cfb(struct crypto_ablkcipher *cipher,

int crypto4xx_setkey_aes_cfb(struct crypto_skcipher *cipher,

			     const u8 *key, unsigned int keylen);

int crypto4xx_setkey_aes_ecb(struct crypto_ablkcipher *cipher,

int crypto4xx_setkey_aes_ecb(struct crypto_skcipher *cipher,

			     const u8 *key, unsigned int keylen);

int crypto4xx_setkey_aes_ofb(struct crypto_ablkcipher *cipher,

int crypto4xx_setkey_aes_ofb(struct crypto_skcipher *cipher,

			     const u8 *key, unsigned int keylen);

int crypto4xx_setkey_rfc3686(struct crypto_ablkcipher *cipher,

int crypto4xx_setkey_rfc3686(struct crypto_skcipher *cipher,

			     const u8 *key, unsigned int keylen);

int crypto4xx_encrypt_iv(struct ablkcipher_request *req);

int crypto4xx_decrypt_iv(struct ablkcipher_request *req);

int crypto4xx_encrypt_noiv(struct ablkcipher_request *req);

int crypto4xx_decrypt_noiv(struct ablkcipher_request *req);

int crypto4xx_rfc3686_encrypt(struct ablkcipher_request *req);

int crypto4xx_rfc3686_decrypt(struct ablkcipher_request *req);

int crypto4xx_encrypt_iv(struct skcipher_request *req);

int crypto4xx_decrypt_iv(struct skcipher_request *req);

int crypto4xx_encrypt_noiv(struct skcipher_request *req);

int crypto4xx_decrypt_noiv(struct skcipher_request *req);

int crypto4xx_rfc3686_encrypt(struct skcipher_request *req);

int crypto4xx_rfc3686_decrypt(struct skcipher_request *req);

int crypto4xx_sha1_alg_init(struct crypto_tfm *tfm);

int crypto4xx_hash_digest(struct ahash_request *req);

int crypto4xx_hash_final(struct ahash_request *req);