diff options
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/crypto/des_ubicom32.c')
| -rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/crypto/des_ubicom32.c | 761 |
1 files changed, 761 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/crypto/des_ubicom32.c b/target/linux/ubicom32/files/arch/ubicom32/crypto/des_ubicom32.c new file mode 100644 index 000000000..14e5fb24e --- /dev/null +++ b/target/linux/ubicom32/files/arch/ubicom32/crypto/des_ubicom32.c @@ -0,0 +1,761 @@ +/* + * arch/ubicom32/crypto/des_ubicom32.c + * Ubicom32 implementation of the DES Cipher Algorithm. + * + * (C) Copyright 2009, Ubicom, Inc. + * + * This file is part of the Ubicom32 Linux Kernel Port. + * + * The Ubicom32 Linux Kernel Port is free software: you can redistribute + * it and/or modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, either version 2 of the + * License, or (at your option) any later version. + * + * The Ubicom32 Linux Kernel Port is distributed in the hope that it + * will be useful, but WITHOUT ANY WARRANTY; without even the implied + * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with the Ubicom32 Linux Kernel Port. If not, + * see <http://www.gnu.org/licenses/>. + * + * Ubicom32 implementation derived from (with many thanks): + * arch/m68knommu + * arch/blackfin + * arch/parisc + */ +#include <crypto/algapi.h> +#include <linux/init.h> +#include <linux/module.h> + +#include "crypto_ubicom32.h" +extern int crypto_des_check_key(const u8 *key, unsigned int keylen, u32 *flags); + +#define DES_BLOCK_SIZE 8 +#define DES_KEY_SIZE 8 + +#define DES3_192_KEY_SIZE (3 * DES_KEY_SIZE) +#define DES3_192_BLOCK_SIZE DES_BLOCK_SIZE + +#define DES3_SUB_KEY(key, i) (((u8 *)key) + (i * DES_KEY_SIZE)) + +enum des_ops { + DES_ENCRYPT, + DES_DECRYPT, + + DES3_EDE_ENCRYPT, + DES3_EDE_DECRYPT, + +#ifdef DES3_EEE + DES3_EEE_ENCRYPT, + DES3_EEE_DECRYPT, +#endif +}; + +struct ubicom32_des_ctx { + u8 key[3 * DES_KEY_SIZE]; + u32 ctrl; + int key_len; +}; + +static inline void des_hw_set_key(const u8 *key, u8 key_len) +{ + /* + * HW 3DES is not tested yet, use DES just as ipOS + */ + DES_SET_KEY(key); +} + +static inline void des_hw_cipher(u8 *out, const u8 *in) +{ + SEC_SET_INPUT_2W(in); + + asm volatile ( + " ; start DES by writing 0x38(SECURITY_BASE) \n\t" + " move.4 0x38(%0), #0x01 \n\t" + " pipe_flush 0 \n\t" + " \n\t" + " ; wait for the module to calculate the output \n\t" + " btst 0x04(%0), #0 \n\t" + " jmpne.f .-4 \n\t" + : + : "a" (SEC_BASE) + : "cc" + ); + + SEC_GET_OUTPUT_2W(out); +} + + +static void inline des3_hw_ede_encrypt(u8 *keys, u8 *out, const u8 *in) +{ + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 0), DES_KEY_SIZE); + des_hw_cipher(out, in); + + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 1), DES_KEY_SIZE); + des_hw_cipher(out, out); + + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 2), DES_KEY_SIZE); + des_hw_cipher(out, out); +} + +static void inline des3_hw_ede_decrypt(u8 *keys, u8 *out, const u8 *in) +{ + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 2), DES_KEY_SIZE); + des_hw_cipher(out, in); + + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 1), DES_KEY_SIZE); + des_hw_cipher(out, out); + + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 0), DES_KEY_SIZE); + des_hw_cipher(out, out); +} + +#ifdef DES3_EEE +static void inline des3_hw_eee_encrypt(u8 *keys, u8 *out, const u8 *in) +{ + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 0), 2); + des_hw_cipher(out, in); + + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 1), 2); + des_hw_cipher(out, out); + + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 2), 2); + des_hw_cipher(out, out); +} + +static void inline des3_hw_eee_decrypt(u8 *keys, u8 *out, const u8 *in) +{ + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 2), 2); + des_hw_cipher(out, in); + + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 1), 2); + des_hw_cipher(out, out); + + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); + des_hw_set_key(DES3_SUB_KEY(keys, 0), 2); + des_hw_cipher(out, out); +} +#endif + +static int des_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen) +{ + struct ubicom32_des_ctx *dctx = crypto_tfm_ctx(tfm); + u32 *flags = &tfm->crt_flags; + int ret; + + /* test if key is valid (not a weak key) */ + ret = crypto_des_check_key(key, keylen, flags); + if (ret == 0) { + memcpy(dctx->key, key, keylen); + dctx->key_len = keylen; + //dctx->ctrl = (keylen == DES_KEY_SIZE) ? SEC_ALG_DES : SEC_ALG_3DES + /* 2DES and 3DES are both implemented with DES hw function */ + dctx->ctrl = SEC_ALG_DES; + } + return ret; +} + +static inline void des_cipher_1b(struct crypto_tfm *tfm, u8 *out, const u8 *in, u32 extra_flags) +{ + const struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm); + + hw_crypto_lock(); + hw_crypto_check(); + hw_crypto_set_ctrl(uctx->ctrl | extra_flags); + + des_hw_set_key(uctx->key, uctx->key_len); + des_hw_cipher(out, in); + + hw_crypto_unlock(); +} + +static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +{ + des_cipher_1b(tfm, out, in, SEC_DIR_ENCRYPT); +} + +static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +{ + des_cipher_1b(tfm, out, in, SEC_DIR_DECRYPT); +} + +static struct crypto_alg des_alg = { + .cra_name = "des", + .cra_driver_name = "des-ubicom32", + .cra_priority = CRYPTO_UBICOM32_PRIORITY, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = DES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct ubicom32_des_ctx), + .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, + .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(des_alg.cra_list), + .cra_u = { + .cipher = { + .cia_min_keysize = DES_KEY_SIZE, + .cia_max_keysize = DES_KEY_SIZE, + .cia_setkey = des_setkey, + .cia_encrypt = des_encrypt, + .cia_decrypt = des_decrypt, + } + } +}; + +static void ecb_des_ciper_loop(u8 *out, u8 *in, unsigned int n) +{ + while (likely(n)) { + des_hw_cipher(out, in); + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} + +static void ecb_des3_ede_encrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n) +{ + while (likely(n)) { + des3_hw_ede_encrypt(keys, out, in); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} + +static void ecb_des3_ede_decrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n) +{ + while (likely(n)) { + des3_hw_ede_decrypt(keys, out, in); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} + +#ifdef DES3_EEE +static void ecb_des3_eee_encrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n) +{ + while (likely(n)) { + des3_hw_eee_encrypt(keys, out, in); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} + +static void ecb_des3_eee_decrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n) +{ + while (likely(n)) { + des3_hw_eee_decrypt(keys, out, in); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} +#endif + +static inline void ecb_des_cipher_n(struct ubicom32_des_ctx *uctx, enum des_ops op, u8 *out, u8 *in, unsigned int n) +{ + switch (op) { + case DES_ENCRYPT: + case DES_DECRYPT: + /* set the right algo, direction and key once */ + hw_crypto_set_ctrl(SEC_ALG_DES | (op == DES_ENCRYPT ? SEC_DIR_ENCRYPT : 0)); + des_hw_set_key(uctx->key, uctx->key_len); + ecb_des_ciper_loop(out, in, n); + break; + + case DES3_EDE_ENCRYPT: + ecb_des3_ede_encrypt_loop(uctx->key, out, in, n); + break; + + case DES3_EDE_DECRYPT: + ecb_des3_ede_decrypt_loop(uctx->key, out, in, n); + break; + +#ifdef DES3_EEE + case DES3_EEE_ENCRYPT: + ecb_des3_eee_encrypt_loop(uctx->key, out, in, n); + break; + + case DES3_EEE_DECRYPT: + ecb_des3_eee_decrypt_loop(uctx->key, out, in, n); + break; +#endif + } +} + +static inline void des_xor_2w(u32 *data, u32 *iv) +{ + data[0] ^= iv[0]; + data[1] ^= iv[1]; +} + +static void cbc_des_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n) +{ + while (likely(n)) { + des_xor_2w((u32 *)in, (u32 *)iv); + des_hw_cipher(out, in); + SEC_COPY_2W(iv, out); + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} + +static void cbc_des_decrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n) +{ + u8 next_iv[DES_BLOCK_SIZE]; + while (likely(n)) { + SEC_COPY_2W(next_iv, in); + des_hw_cipher(out, in); + des_xor_2w((u32 *)out, (u32 *)iv); + SEC_COPY_2W(iv, next_iv); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} + +static void cbc_des3_ede_encrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n) +{ + while (likely(n)) { + des_xor_2w((u32 *)in, (u32 *)iv); + des3_hw_ede_encrypt(keys, out, in); + SEC_COPY_2W(iv, out); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} + +static void cbc_des3_ede_decrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n) +{ + u8 next_iv[DES_BLOCK_SIZE]; + while (likely(n)) { + SEC_COPY_2W(next_iv, in); + des3_hw_ede_decrypt(keys, out, in); + des_xor_2w((u32 *)out, (u32 *)iv); + SEC_COPY_2W(iv, next_iv); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} + +#ifdef DES3_EEE +static void cbc_des3_eee_encrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n) +{ + while (likely(n)) { + des_xor_2w((u32 *)in, (u32 *)iv); + des3_hw_eee_encrypt(keys, out, in); + SEC_COPY_2W(iv, out); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} + +static void cbc_des3_eee_decrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n) +{ + u8 next_iv[DES_BLOCK_SIZE]; + while (likely(n)) { + SEC_COPY_2W(next_iv, in); + des3_hw_eee_decrypt(keys, out, in); + des_xor_2w((u32 *)out, (u32 *)iv); + SEC_COPY_2W(iv, next_iv); + + out += DES_BLOCK_SIZE; + in += DES_BLOCK_SIZE; + n -= DES_BLOCK_SIZE; + } +} +#endif + +static inline void cbc_des_cipher_n(struct ubicom32_des_ctx *uctx, enum des_ops op, u8 *out, u8 *in, u8 *iv, unsigned int n) +{ + switch (op) { + case DES_ENCRYPT: + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); + des_hw_set_key(uctx->key, uctx->key_len); + cbc_des_encrypt_loop(out, in, iv, n); + break; + + case DES_DECRYPT: + /* set the right algo, direction and key once */ + hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); + des_hw_set_key(uctx->key, uctx->key_len); + cbc_des_decrypt_loop(out, in, iv, n); + break; + + case DES3_EDE_ENCRYPT: + cbc_des3_ede_encrypt_loop(uctx->key, out, in, iv, n); + break; + + case DES3_EDE_DECRYPT: + cbc_des3_ede_decrypt_loop(uctx->key, out, in, iv, n); + break; + +#ifdef DES3_EEE + case DES3_EEE_ENCRYPT: + cbc_des3_eee_encrypt_loop(uctx->key, out, in, iv, n); + break; + + case DES3_EEE_DECRYPT: + cbc_des3_eee_decrypt_loop(uctx->key, out, in, iv, n); + break; +#endif + } +} + +static int des_cipher(struct blkcipher_desc *desc, struct scatterlist *dst, + struct scatterlist *src, unsigned int nbytes, u32 extra_flags, enum des_ops op) +{ + struct ubicom32_des_ctx *uctx = crypto_blkcipher_ctx(desc->tfm); + int ret; + + struct blkcipher_walk walk; + blkcipher_walk_init(&walk, dst, src, nbytes); + ret = blkcipher_walk_virt(desc, &walk); + if (ret) { + return ret; + } + + hw_crypto_lock(); + hw_crypto_check(); + + while ((nbytes = walk.nbytes)) { + /* only use complete blocks */ + unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1); + u8 *out = walk.dst.virt.addr; + u8 *in = walk.src.virt.addr; + + /* finish n/16 blocks */ + if (extra_flags & SEC_CBC_SET) { + cbc_des_cipher_n(uctx, op, out, in, walk.iv, n); + } else { + ecb_des_cipher_n(uctx, op, out, in, n); + } + + nbytes &= DES_BLOCK_SIZE - 1; + ret = blkcipher_walk_done(desc, &walk, nbytes); + } + + hw_crypto_unlock(); + return ret; +} + +static int ecb_des_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES_ENCRYPT); +} + +static int ecb_des_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES_DECRYPT); +} + +static struct crypto_alg ecb_des_alg = { + .cra_name = "ecb(des)", + .cra_driver_name = "ecb-des-ubicom32", + .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY, + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = DES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct ubicom32_des_ctx), + .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ecb_des_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + .setkey = des_setkey, + .encrypt = ecb_des_encrypt, + .decrypt = ecb_des_decrypt, + } + } +}; + +static int cbc_des_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES_ENCRYPT); +} + +static int cbc_des_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES_DECRYPT); +} + +static struct crypto_alg cbc_des_alg = { + .cra_name = "cbc(des)", + .cra_driver_name = "cbc-des-ubicom32", + .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY, + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = DES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct ubicom32_des_ctx), + .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(cbc_des_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + .ivsize = DES_BLOCK_SIZE, + .setkey = des_setkey, + .encrypt = cbc_des_encrypt, + .decrypt = cbc_des_decrypt, + } + } +}; + +/* + * RFC2451: + * + * For DES-EDE3, there is no known need to reject weak or + * complementation keys. Any weakness is obviated by the use of + * multiple keys. + * + * However, if the first two or last two independent 64-bit keys are + * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the + * same as DES. Implementers MUST reject keys that exhibit this + * property. + * + */ +static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen) +{ + int i, ret; + struct ubicom32_des_ctx *dctx = crypto_tfm_ctx(tfm); + const u8 *temp_key = key; + u32 *flags = &tfm->crt_flags; + + if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) && + memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2], + DES_KEY_SIZE))) { + + *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED; + return -EINVAL; + } + for (i = 0; i < 3; i++, temp_key += DES_KEY_SIZE) { + ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags); + if (ret < 0) + return ret; + } + memcpy(dctx->key, key, keylen); + dctx->ctrl = SEC_ALG_DES; //hw 3DES not working yet + dctx->key_len = keylen; + return 0; +} + +static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm); + + hw_crypto_lock(); + hw_crypto_check(); + + des3_hw_ede_encrypt(uctx->key, dst, src); + + hw_crypto_unlock(); +} + +static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm); + + hw_crypto_lock(); + hw_crypto_check(); + + des3_hw_ede_decrypt(uctx->key, dst, src); + + hw_crypto_unlock(); +} + +static struct crypto_alg des3_192_alg = { + .cra_name = "des3_ede", + .cra_driver_name = "des3_ede-ubicom32", + .cra_priority = CRYPTO_UBICOM32_PRIORITY, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = DES3_192_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct ubicom32_des_ctx), + .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list), + .cra_u = { + .cipher = { + .cia_min_keysize = DES3_192_KEY_SIZE, + .cia_max_keysize = DES3_192_KEY_SIZE, + .cia_setkey = des3_192_setkey, + .cia_encrypt = des3_192_encrypt, + .cia_decrypt = des3_192_decrypt, + } + } +}; + +static int ecb_des3_192_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, + struct scatterlist *src, unsigned int nbytes) +{ + return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES3_EDE_ENCRYPT); +} + +static int ecb_des3_192_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, + struct scatterlist *src, unsigned int nbytes) +{ + return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES3_EDE_DECRYPT); +} + +static struct crypto_alg ecb_des3_192_alg = { + .cra_name = "ecb(des3_ede)", + .cra_driver_name = "ecb-des3_ede-ubicom32", + .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY, + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = DES3_192_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct ubicom32_des_ctx), + .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT( + ecb_des3_192_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = DES3_192_KEY_SIZE, + .max_keysize = DES3_192_KEY_SIZE, + .setkey = des3_192_setkey, + .encrypt = ecb_des3_192_encrypt, + .decrypt = ecb_des3_192_decrypt, + } + } +}; + +static int cbc_des3_192_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, + struct scatterlist *src, unsigned int nbytes) +{ + return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES3_EDE_ENCRYPT); +} + +static int cbc_des3_192_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, + struct scatterlist *src, unsigned int nbytes) +{ + return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES3_EDE_DECRYPT); +} + +static struct crypto_alg cbc_des3_192_alg = { + .cra_name = "cbc(des3_ede)", + .cra_driver_name = "cbc-des3_ede-ubicom32", + .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY, + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = DES3_192_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct ubicom32_des_ctx), + .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT( + cbc_des3_192_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = DES3_192_KEY_SIZE, + .max_keysize = DES3_192_KEY_SIZE, + .ivsize = DES3_192_BLOCK_SIZE, + .setkey = des3_192_setkey, + .encrypt = cbc_des3_192_encrypt, + .decrypt = cbc_des3_192_decrypt, + } + } +}; + +static int init(void) +{ + int ret = 0; + + hw_crypto_init(); + + ret = crypto_register_alg(&des_alg); + if (ret) + goto des_err; + ret = crypto_register_alg(&ecb_des_alg); + if (ret) + goto ecb_des_err; + ret = crypto_register_alg(&cbc_des_alg); + if (ret) + goto cbc_des_err; + + ret = crypto_register_alg(&des3_192_alg); + if (ret) + goto des3_192_err; + ret = crypto_register_alg(&ecb_des3_192_alg); + if (ret) + goto ecb_des3_192_err; + ret = crypto_register_alg(&cbc_des3_192_alg); + if (ret) + goto cbc_des3_192_err; + +out: + return ret; + +cbc_des3_192_err: + crypto_unregister_alg(&ecb_des3_192_alg); +ecb_des3_192_err: + crypto_unregister_alg(&des3_192_alg); +des3_192_err: + crypto_unregister_alg(&cbc_des_alg); +cbc_des_err: + crypto_unregister_alg(&ecb_des_alg); +ecb_des_err: + crypto_unregister_alg(&des_alg); +des_err: + goto out; +} + +static void __exit fini(void) +{ + crypto_unregister_alg(&cbc_des3_192_alg); + crypto_unregister_alg(&ecb_des3_192_alg); + crypto_unregister_alg(&des3_192_alg); + crypto_unregister_alg(&cbc_des_alg); + crypto_unregister_alg(&ecb_des_alg); + crypto_unregister_alg(&des_alg); +} + +module_init(init); +module_exit(fini); + +MODULE_ALIAS("des"); +MODULE_ALIAS("des3_ede"); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms"); |