From ef3e746815954ada673fab6545679e7418d1b1d3 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 21 Oct 2009 22:45:02 +0200 Subject: [PATCH] Staging: rt28x0: remove unused SHA256 code Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rt2860/common/crypt_sha2.c | 257 --------------------- drivers/staging/rt2860/crypt_hmac.h | 11 - drivers/staging/rt2860/crypt_sha2.h | 28 --- 3 files changed, 296 deletions(-) diff --git a/drivers/staging/rt2860/common/crypt_sha2.c b/drivers/staging/rt2860/common/crypt_sha2.c index cb3f7c27b62..d4b23966cb6 100644 --- a/drivers/staging/rt2860/common/crypt_sha2.c +++ b/drivers/staging/rt2860/common/crypt_sha2.c @@ -47,42 +47,7 @@ static const UINT32 SHA1_K[4] = { static const UINT32 SHA1_DefaultHashValue[5] = { 0x67452301UL, 0xefcdab89UL, 0x98badcfeUL, 0x10325476UL, 0xc3d2e1f0UL }; -#endif /* SHA1_SUPPORT */ - -#ifdef SHA256_SUPPORT -/* SHA256 functions */ -#define Zsigma_256_0(x) (ROTR32(x,2) ^ ROTR32(x,13) ^ ROTR32(x,22)) -#define Zsigma_256_1(x) (ROTR32(x,6) ^ ROTR32(x,11) ^ ROTR32(x,25)) -#define Sigma_256_0(x) (ROTR32(x,7) ^ ROTR32(x,18) ^ SHR(x,3)) -#define Sigma_256_1(x) (ROTR32(x,17) ^ ROTR32(x,19) ^ SHR(x,10)) -/* SHA256 constants */ -static const UINT32 SHA256_K[64] = { - 0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL, - 0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL, - 0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL, - 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL, - 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL, - 0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL, - 0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL, - 0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL, - 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL, - 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL, - 0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL, - 0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL, - 0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL, - 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL, - 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL, - 0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL -}; -static const UINT32 SHA256_DefaultHashValue[8] = { - 0x6a09e667UL, 0xbb67ae85UL, 0x3c6ef372UL, 0xa54ff53aUL, - 0x510e527fUL, 0x9b05688cUL, 0x1f83d9abUL, 0x5be0cd19UL -}; -#endif /* SHA256_SUPPORT */ - - -#ifdef SHA1_SUPPORT /* ======================================================================== Routine Description: @@ -310,226 +275,4 @@ VOID RT_SHA1 ( } /* End of RT_SHA1 */ #endif /* SHA1_SUPPORT */ - -#ifdef SHA256_SUPPORT -/* -======================================================================== -Routine Description: - Initial SHA256_CTX_STRUC - -Arguments: - pSHA_CTX Pointer to SHA256_CTX_STRUC - -Return Value: - None - -Note: - None -======================================================================== -*/ -VOID SHA256_Init ( - IN SHA256_CTX_STRUC *pSHA_CTX) -{ - NdisMoveMemory(pSHA_CTX->HashValue, SHA256_DefaultHashValue, - sizeof(SHA256_DefaultHashValue)); - NdisZeroMemory(pSHA_CTX->Block, SHA256_BLOCK_SIZE); - pSHA_CTX->MessageLen = 0; - pSHA_CTX->BlockLen = 0; -} /* End of SHA256_Init */ - - -/* -======================================================================== -Routine Description: - SHA256 computation for one block (512 bits) - -Arguments: - pSHA_CTX Pointer to SHA256_CTX_STRUC - -Return Value: - None - -Note: - None -======================================================================== -*/ -VOID SHA256_Hash ( - IN SHA256_CTX_STRUC *pSHA_CTX) -{ - UINT32 W_i,t; - UINT32 W[64]; - UINT32 a,b,c,d,e,f,g,h,T1,T2; - - /* Prepare the message schedule, {W_i}, 0 < t < 15 */ - NdisMoveMemory(W, pSHA_CTX->Block, SHA256_BLOCK_SIZE); - for (W_i = 0; W_i < 16; W_i++) - W[W_i] = cpu2be32(W[W_i]); /* Endian Swap */ - /* End of for */ - - /* SHA256 hash computation */ - /* Initialize the working variables */ - a = pSHA_CTX->HashValue[0]; - b = pSHA_CTX->HashValue[1]; - c = pSHA_CTX->HashValue[2]; - d = pSHA_CTX->HashValue[3]; - e = pSHA_CTX->HashValue[4]; - f = pSHA_CTX->HashValue[5]; - g = pSHA_CTX->HashValue[6]; - h = pSHA_CTX->HashValue[7]; - - /* 64 rounds */ - for (t = 0;t < 64;t++) { - if (t > 15) /* Prepare the message schedule, {W_i}, 16 < t < 63 */ - W[t] = Sigma_256_1(W[t-2]) + W[t-7] + Sigma_256_0(W[t-15]) + W[t-16]; - /* End of if */ - T1 = h + Zsigma_256_1(e) + Ch(e,f,g) + SHA256_K[t] + W[t]; - T2 = Zsigma_256_0(a) + Maj(a,b,c); - h = g; - g = f; - f = e; - e = d + T1; - d = c; - c = b; - b = a; - a = T1 + T2; - } /* End of for */ - - /* Compute the i^th intermediate hash value H^(i) */ - pSHA_CTX->HashValue[0] += a; - pSHA_CTX->HashValue[1] += b; - pSHA_CTX->HashValue[2] += c; - pSHA_CTX->HashValue[3] += d; - pSHA_CTX->HashValue[4] += e; - pSHA_CTX->HashValue[5] += f; - pSHA_CTX->HashValue[6] += g; - pSHA_CTX->HashValue[7] += h; - - NdisZeroMemory(pSHA_CTX->Block, SHA256_BLOCK_SIZE); - pSHA_CTX->BlockLen = 0; -} /* End of SHA256_Hash */ - - -/* -======================================================================== -Routine Description: - The message is appended to block. If block size > 64 bytes, the SHA256_Hash -will be called. - -Arguments: - pSHA_CTX Pointer to SHA256_CTX_STRUC - message Message context - messageLen The length of message in bytes - -Return Value: - None - -Note: - None -======================================================================== -*/ -VOID SHA256_Append ( - IN SHA256_CTX_STRUC *pSHA_CTX, - IN const UINT8 Message[], - IN UINT MessageLen) -{ - UINT appendLen = 0; - UINT diffLen = 0; - - while (appendLen != MessageLen) { - diffLen = MessageLen - appendLen; - if ((pSHA_CTX->BlockLen + diffLen) < SHA256_BLOCK_SIZE) { - NdisMoveMemory(pSHA_CTX->Block + pSHA_CTX->BlockLen, - Message + appendLen, diffLen); - pSHA_CTX->BlockLen += diffLen; - appendLen += diffLen; - } - else - { - NdisMoveMemory(pSHA_CTX->Block + pSHA_CTX->BlockLen, - Message + appendLen, SHA256_BLOCK_SIZE - pSHA_CTX->BlockLen); - appendLen += (SHA256_BLOCK_SIZE - pSHA_CTX->BlockLen); - pSHA_CTX->BlockLen = SHA256_BLOCK_SIZE; - SHA256_Hash(pSHA_CTX); - } /* End of if */ - } /* End of while */ - pSHA_CTX->MessageLen += MessageLen; -} /* End of SHA256_Append */ - - -/* -======================================================================== -Routine Description: - 1. Append bit 1 to end of the message - 2. Append the length of message in rightmost 64 bits - 3. Transform the Hash Value to digest message - -Arguments: - pSHA_CTX Pointer to SHA256_CTX_STRUC - -Return Value: - digestMessage Digest message - -Note: - None -======================================================================== -*/ -VOID SHA256_End ( - IN SHA256_CTX_STRUC *pSHA_CTX, - OUT UINT8 DigestMessage[]) -{ - UINT index; - UINT64 message_length_bits; - - /* Append bit 1 to end of the message */ - NdisFillMemory(pSHA_CTX->Block + pSHA_CTX->BlockLen, 1, 0x80); - - /* 55 = 64 - 8 - 1: append 1 bit(1 byte) and message length (8 bytes) */ - if (pSHA_CTX->BlockLen > 55) - SHA256_Hash(pSHA_CTX); - /* End of if */ - - /* Append the length of message in rightmost 64 bits */ - message_length_bits = pSHA_CTX->MessageLen*8; - message_length_bits = cpu2be64(message_length_bits); - NdisMoveMemory(&pSHA_CTX->Block[56], &message_length_bits, 8); - SHA256_Hash(pSHA_CTX); - - /* Return message digest, transform the UINT32 hash value to bytes */ - for (index = 0; index < 8;index++) - pSHA_CTX->HashValue[index] = cpu2be32(pSHA_CTX->HashValue[index]); - /* End of for */ - NdisMoveMemory(DigestMessage, pSHA_CTX->HashValue, SHA256_DIGEST_SIZE); -} /* End of SHA256_End */ - - -/* -======================================================================== -Routine Description: - SHA256 algorithm - -Arguments: - message Message context - messageLen The length of message in bytes - -Return Value: - digestMessage Digest message - -Note: - None -======================================================================== -*/ -VOID RT_SHA256 ( - IN const UINT8 Message[], - IN UINT MessageLen, - OUT UINT8 DigestMessage[]) -{ - SHA256_CTX_STRUC sha_ctx; - - NdisZeroMemory(&sha_ctx, sizeof(SHA256_CTX_STRUC)); - SHA256_Init(&sha_ctx); - SHA256_Append(&sha_ctx, Message, MessageLen); - SHA256_End(&sha_ctx, DigestMessage); -} /* End of RT_SHA256 */ -#endif /* SHA256_SUPPORT */ - /* End of crypt_sha2.c */ diff --git a/drivers/staging/rt2860/crypt_hmac.h b/drivers/staging/rt2860/crypt_hmac.h index 9314ff7547b..717b8a26fd1 100644 --- a/drivers/staging/rt2860/crypt_hmac.h +++ b/drivers/staging/rt2860/crypt_hmac.h @@ -57,17 +57,6 @@ VOID HMAC_SHA1 ( IN UINT MACLen); #endif /* SHA1_SUPPORT */ -#ifdef SHA256_SUPPORT -#define HMAC_SHA256_SUPPORT -VOID HMAC_SHA256 ( - IN const UINT8 Key[], - IN UINT KeyLen, - IN const UINT8 Message[], - IN UINT MessageLen, - OUT UINT8 MAC[], - IN UINT MACLen); -#endif /* SHA256_SUPPORT */ - #ifdef MD5_SUPPORT #define HMAC_MD5_SUPPORT VOID HMAC_MD5 ( diff --git a/drivers/staging/rt2860/crypt_sha2.h b/drivers/staging/rt2860/crypt_sha2.h index 055efb15a45..5b95965e4d1 100644 --- a/drivers/staging/rt2860/crypt_sha2.h +++ b/drivers/staging/rt2860/crypt_sha2.h @@ -50,7 +50,6 @@ /* Algorithm options */ #define SHA1_SUPPORT -#define SHA256_SUPPORT #ifdef SHA1_SUPPORT #define SHA1_BLOCK_SIZE 64 /* 512 bits = 64 bytes */ @@ -79,31 +78,4 @@ VOID RT_SHA1 ( OUT UINT8 DigestMessage[]); #endif /* SHA1_SUPPORT */ -#ifdef SHA256_SUPPORT -#define SHA256_BLOCK_SIZE 64 /* 512 bits = 64 bytes */ -#define SHA256_DIGEST_SIZE 32 /* 256 bits = 32 bytes */ -typedef struct _SHA256_CTX_STRUC { - UINT32 HashValue[8]; /* 8 = (SHA256_DIGEST_SIZE / 32) */ - UINT64 MessageLen; /* total size */ - UINT8 Block[SHA256_BLOCK_SIZE]; - UINT BlockLen; -} SHA256_CTX_STRUC, *PSHA256_CTX_STRUC; - -VOID SHA256_Init ( - IN SHA256_CTX_STRUC *pSHA_CTX); -VOID SHA256_Hash ( - IN SHA256_CTX_STRUC *pSHA_CTX); -VOID SHA256_Append ( - IN SHA256_CTX_STRUC *pSHA_CTX, - IN const UINT8 Message[], - IN UINT MessageLen); -VOID SHA256_End ( - IN SHA256_CTX_STRUC *pSHA_CTX, - OUT UINT8 DigestMessage[]); -VOID RT_SHA256 ( - IN const UINT8 Message[], - IN UINT MessageLen, - OUT UINT8 DigestMessage[]); -#endif /* SHA256_SUPPORT */ - #endif /* __CRYPT_SHA2_H__ */