diff --git a/crypto/speck.c b/crypto/speck.c index 4e80ad76bcd7..58aa9f7f91f7 100644 --- a/crypto/speck.c +++ b/crypto/speck.c @@ -24,6 +24,7 @@ */ #include +#include #include #include #include @@ -31,22 +32,6 @@ /* Speck128 */ -#define SPECK128_BLOCK_SIZE 16 - -#define SPECK128_128_KEY_SIZE 16 -#define SPECK128_128_NROUNDS 32 - -#define SPECK128_192_KEY_SIZE 24 -#define SPECK128_192_NROUNDS 33 - -#define SPECK128_256_KEY_SIZE 32 -#define SPECK128_256_NROUNDS 34 - -struct speck128_tfm_ctx { - u64 round_keys[SPECK128_256_NROUNDS]; - int nrounds; -}; - static __always_inline void speck128_round(u64 *x, u64 *y, u64 k) { *x = ror64(*x, 8); @@ -65,9 +50,9 @@ static __always_inline void speck128_unround(u64 *x, u64 *y, u64 k) *x = rol64(*x, 8); } -static void speck128_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +void crypto_speck128_encrypt(const struct speck128_tfm_ctx *ctx, + u8 *out, const u8 *in) { - const struct speck128_tfm_ctx *ctx = crypto_tfm_ctx(tfm); u64 y = get_unaligned_le64(in); u64 x = get_unaligned_le64(in + 8); int i; @@ -78,10 +63,16 @@ static void speck128_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) put_unaligned_le64(y, out); put_unaligned_le64(x, out + 8); } +EXPORT_SYMBOL_GPL(crypto_speck128_encrypt); -static void speck128_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +static void speck128_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +{ + crypto_speck128_encrypt(crypto_tfm_ctx(tfm), out, in); +} + +void crypto_speck128_decrypt(const struct speck128_tfm_ctx *ctx, + u8 *out, const u8 *in) { - const struct speck128_tfm_ctx *ctx = crypto_tfm_ctx(tfm); u64 y = get_unaligned_le64(in); u64 x = get_unaligned_le64(in + 8); int i; @@ -92,11 +83,16 @@ static void speck128_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) put_unaligned_le64(y, out); put_unaligned_le64(x, out + 8); } +EXPORT_SYMBOL_GPL(crypto_speck128_decrypt); -static int speck128_setkey(struct crypto_tfm *tfm, const u8 *key, +static void speck128_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +{ + crypto_speck128_decrypt(crypto_tfm_ctx(tfm), out, in); +} + +int crypto_speck128_setkey(struct speck128_tfm_ctx *ctx, const u8 *key, unsigned int keylen) { - struct speck128_tfm_ctx *ctx = crypto_tfm_ctx(tfm); u64 l[3]; u64 k; int i; @@ -138,22 +134,16 @@ static int speck128_setkey(struct crypto_tfm *tfm, const u8 *key, return 0; } +EXPORT_SYMBOL_GPL(crypto_speck128_setkey); + +static int speck128_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen) +{ + return crypto_speck128_setkey(crypto_tfm_ctx(tfm), key, keylen); +} /* Speck64 */ -#define SPECK64_BLOCK_SIZE 8 - -#define SPECK64_96_KEY_SIZE 12 -#define SPECK64_96_NROUNDS 26 - -#define SPECK64_128_KEY_SIZE 16 -#define SPECK64_128_NROUNDS 27 - -struct speck64_tfm_ctx { - u32 round_keys[SPECK64_128_NROUNDS]; - int nrounds; -}; - static __always_inline void speck64_round(u32 *x, u32 *y, u32 k) { *x = ror32(*x, 8); @@ -172,9 +162,9 @@ static __always_inline void speck64_unround(u32 *x, u32 *y, u32 k) *x = rol32(*x, 8); } -static void speck64_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +void crypto_speck64_encrypt(const struct speck64_tfm_ctx *ctx, + u8 *out, const u8 *in) { - const struct speck64_tfm_ctx *ctx = crypto_tfm_ctx(tfm); u32 y = get_unaligned_le32(in); u32 x = get_unaligned_le32(in + 4); int i; @@ -185,10 +175,16 @@ static void speck64_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) put_unaligned_le32(y, out); put_unaligned_le32(x, out + 4); } +EXPORT_SYMBOL_GPL(crypto_speck64_encrypt); -static void speck64_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +static void speck64_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +{ + crypto_speck64_encrypt(crypto_tfm_ctx(tfm), out, in); +} + +void crypto_speck64_decrypt(const struct speck64_tfm_ctx *ctx, + u8 *out, const u8 *in) { - const struct speck64_tfm_ctx *ctx = crypto_tfm_ctx(tfm); u32 y = get_unaligned_le32(in); u32 x = get_unaligned_le32(in + 4); int i; @@ -199,11 +195,16 @@ static void speck64_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) put_unaligned_le32(y, out); put_unaligned_le32(x, out + 4); } +EXPORT_SYMBOL_GPL(crypto_speck64_decrypt); -static int speck64_setkey(struct crypto_tfm *tfm, const u8 *key, +static void speck64_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +{ + crypto_speck64_decrypt(crypto_tfm_ctx(tfm), out, in); +} + +int crypto_speck64_setkey(struct speck64_tfm_ctx *ctx, const u8 *key, unsigned int keylen) { - struct speck64_tfm_ctx *ctx = crypto_tfm_ctx(tfm); u32 l[3]; u32 k; int i; @@ -236,6 +237,13 @@ static int speck64_setkey(struct crypto_tfm *tfm, const u8 *key, return 0; } +EXPORT_SYMBOL_GPL(crypto_speck64_setkey); + +static int speck64_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen) +{ + return crypto_speck64_setkey(crypto_tfm_ctx(tfm), key, keylen); +} /* Algorithm definitions */ diff --git a/include/crypto/speck.h b/include/crypto/speck.h new file mode 100644 index 000000000000..73cfc952d405 --- /dev/null +++ b/include/crypto/speck.h @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Common values for the Speck algorithm + */ + +#ifndef _CRYPTO_SPECK_H +#define _CRYPTO_SPECK_H + +#include + +/* Speck128 */ + +#define SPECK128_BLOCK_SIZE 16 + +#define SPECK128_128_KEY_SIZE 16 +#define SPECK128_128_NROUNDS 32 + +#define SPECK128_192_KEY_SIZE 24 +#define SPECK128_192_NROUNDS 33 + +#define SPECK128_256_KEY_SIZE 32 +#define SPECK128_256_NROUNDS 34 + +struct speck128_tfm_ctx { + u64 round_keys[SPECK128_256_NROUNDS]; + int nrounds; +}; + +void crypto_speck128_encrypt(const struct speck128_tfm_ctx *ctx, + u8 *out, const u8 *in); + +void crypto_speck128_decrypt(const struct speck128_tfm_ctx *ctx, + u8 *out, const u8 *in); + +int crypto_speck128_setkey(struct speck128_tfm_ctx *ctx, const u8 *key, + unsigned int keysize); + +/* Speck64 */ + +#define SPECK64_BLOCK_SIZE 8 + +#define SPECK64_96_KEY_SIZE 12 +#define SPECK64_96_NROUNDS 26 + +#define SPECK64_128_KEY_SIZE 16 +#define SPECK64_128_NROUNDS 27 + +struct speck64_tfm_ctx { + u32 round_keys[SPECK64_128_NROUNDS]; + int nrounds; +}; + +void crypto_speck64_encrypt(const struct speck64_tfm_ctx *ctx, + u8 *out, const u8 *in); + +void crypto_speck64_decrypt(const struct speck64_tfm_ctx *ctx, + u8 *out, const u8 *in); + +int crypto_speck64_setkey(struct speck64_tfm_ctx *ctx, const u8 *key, + unsigned int keysize); + +#endif /* _CRYPTO_SPECK_H */