diff options
Diffstat (limited to 'movement/lib/TOTP/sha512.c')
| -rw-r--r-- | movement/lib/TOTP/sha512.c | 422 |
1 files changed, 422 insertions, 0 deletions
diff --git a/movement/lib/TOTP/sha512.c b/movement/lib/TOTP/sha512.c new file mode 100644 index 00000000..d35462b1 --- /dev/null +++ b/movement/lib/TOTP/sha512.c @@ -0,0 +1,422 @@ +/*
+ * FIPS-180-2 compliant SHA-384/512 implementation
+ *
+ * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This file is part of mbed TLS (https://tls.mbed.org)
+ */
+/*
+ * The SHA-512 Secure Hash Standard was published by NIST in 2002.
+ *
+ * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
+ */
+
+#include "sha512.h"
+
+#include <string.h>
+#include <stdio.h>
+
+#if defined(_MSC_VER) || defined(__WATCOMC__)
+ #define UL64(x) x##ui64
+#else
+ #define UL64(x) x##ULL
+#endif
+
+/* Implementation that should never be optimized out by the compiler */
+static void mbedtls_zeroize( void *v, size_t n ) {
+ volatile unsigned char *p = v; while( n-- ) *p++ = 0;
+}
+
+/*
+ * 64-bit integer manipulation macros (big endian)
+ */
+#ifndef GET_UINT64_BE
+#define GET_UINT64_BE(n,b,i) \
+{ \
+ (n) = ( (uint64_t) (b)[(i) ] << 56 ) \
+ | ( (uint64_t) (b)[(i) + 1] << 48 ) \
+ | ( (uint64_t) (b)[(i) + 2] << 40 ) \
+ | ( (uint64_t) (b)[(i) + 3] << 32 ) \
+ | ( (uint64_t) (b)[(i) + 4] << 24 ) \
+ | ( (uint64_t) (b)[(i) + 5] << 16 ) \
+ | ( (uint64_t) (b)[(i) + 6] << 8 ) \
+ | ( (uint64_t) (b)[(i) + 7] ); \
+}
+#endif /* GET_UINT64_BE */
+
+#ifndef PUT_UINT64_BE
+#define PUT_UINT64_BE(n,b,i) \
+{ \
+ (b)[(i) ] = (unsigned char) ( (n) >> 56 ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 48 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 40 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) >> 32 ); \
+ (b)[(i) + 4] = (unsigned char) ( (n) >> 24 ); \
+ (b)[(i) + 5] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 6] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 7] = (unsigned char) ( (n) ); \
+}
+#endif /* PUT_UINT64_BE */
+
+/*
+ * Round constants
+ */
+static const uint64_t K[80] =
+{
+ UL64(0x428A2F98D728AE22), UL64(0x7137449123EF65CD),
+ UL64(0xB5C0FBCFEC4D3B2F), UL64(0xE9B5DBA58189DBBC),
+ UL64(0x3956C25BF348B538), UL64(0x59F111F1B605D019),
+ UL64(0x923F82A4AF194F9B), UL64(0xAB1C5ED5DA6D8118),
+ UL64(0xD807AA98A3030242), UL64(0x12835B0145706FBE),
+ UL64(0x243185BE4EE4B28C), UL64(0x550C7DC3D5FFB4E2),
+ UL64(0x72BE5D74F27B896F), UL64(0x80DEB1FE3B1696B1),
+ UL64(0x9BDC06A725C71235), UL64(0xC19BF174CF692694),
+ UL64(0xE49B69C19EF14AD2), UL64(0xEFBE4786384F25E3),
+ UL64(0x0FC19DC68B8CD5B5), UL64(0x240CA1CC77AC9C65),
+ UL64(0x2DE92C6F592B0275), UL64(0x4A7484AA6EA6E483),
+ UL64(0x5CB0A9DCBD41FBD4), UL64(0x76F988DA831153B5),
+ UL64(0x983E5152EE66DFAB), UL64(0xA831C66D2DB43210),
+ UL64(0xB00327C898FB213F), UL64(0xBF597FC7BEEF0EE4),
+ UL64(0xC6E00BF33DA88FC2), UL64(0xD5A79147930AA725),
+ UL64(0x06CA6351E003826F), UL64(0x142929670A0E6E70),
+ UL64(0x27B70A8546D22FFC), UL64(0x2E1B21385C26C926),
+ UL64(0x4D2C6DFC5AC42AED), UL64(0x53380D139D95B3DF),
+ UL64(0x650A73548BAF63DE), UL64(0x766A0ABB3C77B2A8),
+ UL64(0x81C2C92E47EDAEE6), UL64(0x92722C851482353B),
+ UL64(0xA2BFE8A14CF10364), UL64(0xA81A664BBC423001),
+ UL64(0xC24B8B70D0F89791), UL64(0xC76C51A30654BE30),
+ UL64(0xD192E819D6EF5218), UL64(0xD69906245565A910),
+ UL64(0xF40E35855771202A), UL64(0x106AA07032BBD1B8),
+ UL64(0x19A4C116B8D2D0C8), UL64(0x1E376C085141AB53),
+ UL64(0x2748774CDF8EEB99), UL64(0x34B0BCB5E19B48A8),
+ UL64(0x391C0CB3C5C95A63), UL64(0x4ED8AA4AE3418ACB),
+ UL64(0x5B9CCA4F7763E373), UL64(0x682E6FF3D6B2B8A3),
+ UL64(0x748F82EE5DEFB2FC), UL64(0x78A5636F43172F60),
+ UL64(0x84C87814A1F0AB72), UL64(0x8CC702081A6439EC),
+ UL64(0x90BEFFFA23631E28), UL64(0xA4506CEBDE82BDE9),
+ UL64(0xBEF9A3F7B2C67915), UL64(0xC67178F2E372532B),
+ UL64(0xCA273ECEEA26619C), UL64(0xD186B8C721C0C207),
+ UL64(0xEADA7DD6CDE0EB1E), UL64(0xF57D4F7FEE6ED178),
+ UL64(0x06F067AA72176FBA), UL64(0x0A637DC5A2C898A6),
+ UL64(0x113F9804BEF90DAE), UL64(0x1B710B35131C471B),
+ UL64(0x28DB77F523047D84), UL64(0x32CAAB7B40C72493),
+ UL64(0x3C9EBE0A15C9BEBC), UL64(0x431D67C49C100D4C),
+ UL64(0x4CC5D4BECB3E42B6), UL64(0x597F299CFC657E2A),
+ UL64(0x5FCB6FAB3AD6FAEC), UL64(0x6C44198C4A475817)
+};
+
+void mbedtls_sha512_init( mbedtls_sha512_context *ctx )
+{
+ memset( ctx, 0, sizeof( mbedtls_sha512_context ) );
+}
+
+void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
+{
+ if( ctx == NULL )
+ return;
+
+ mbedtls_zeroize( ctx, sizeof( mbedtls_sha512_context ) );
+}
+
+void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
+ const mbedtls_sha512_context *src )
+{
+ *dst = *src;
+}
+
+/*
+ * SHA-512 context setup
+ */
+void mbedtls_sha512_starts( mbedtls_sha512_context *ctx, int is384 )
+{
+ ctx->total[0] = 0;
+ ctx->total[1] = 0;
+
+ if( is384 == 0 )
+ {
+ /* SHA-512 */
+ ctx->state[0] = UL64(0x6A09E667F3BCC908);
+ ctx->state[1] = UL64(0xBB67AE8584CAA73B);
+ ctx->state[2] = UL64(0x3C6EF372FE94F82B);
+ ctx->state[3] = UL64(0xA54FF53A5F1D36F1);
+ ctx->state[4] = UL64(0x510E527FADE682D1);
+ ctx->state[5] = UL64(0x9B05688C2B3E6C1F);
+ ctx->state[6] = UL64(0x1F83D9ABFB41BD6B);
+ ctx->state[7] = UL64(0x5BE0CD19137E2179);
+ }
+ else
+ {
+ /* SHA-384 */
+ ctx->state[0] = UL64(0xCBBB9D5DC1059ED8);
+ ctx->state[1] = UL64(0x629A292A367CD507);
+ ctx->state[2] = UL64(0x9159015A3070DD17);
+ ctx->state[3] = UL64(0x152FECD8F70E5939);
+ ctx->state[4] = UL64(0x67332667FFC00B31);
+ ctx->state[5] = UL64(0x8EB44A8768581511);
+ ctx->state[6] = UL64(0xDB0C2E0D64F98FA7);
+ ctx->state[7] = UL64(0x47B5481DBEFA4FA4);
+ }
+
+ ctx->is384 = is384;
+}
+
+void mbedtls_sha512_process( mbedtls_sha512_context *ctx, const unsigned char data[SHA512_BLOCK_LENGTH] )
+{
+ int i;
+ uint64_t temp1, temp2, W[80];
+ uint64_t A, B, C, D, E, F, G, H;
+
+#define SHR(x,n) (x >> n)
+#define ROTR(x,n) (SHR(x,n) | (x << (64 - n)))
+
+#define S0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))
+#define S1(x) (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))
+
+#define S2(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
+#define S3(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
+
+#define F0(x,y,z) ((x & y) | (z & (x | y)))
+#define F1(x,y,z) (z ^ (x & (y ^ z)))
+
+#define P(a,b,c,d,e,f,g,h,x,K) \
+{ \
+ temp1 = h + S3(e) + F1(e,f,g) + K + x; \
+ temp2 = S2(a) + F0(a,b,c); \
+ d += temp1; h = temp1 + temp2; \
+}
+
+ for( i = 0; i < 16; i++ )
+ {
+ GET_UINT64_BE( W[i], data, i << 3 );
+ }
+
+ for( ; i < 80; i++ )
+ {
+ W[i] = S1(W[i - 2]) + W[i - 7] +
+ S0(W[i - 15]) + W[i - 16];
+ }
+
+ A = ctx->state[0];
+ B = ctx->state[1];
+ C = ctx->state[2];
+ D = ctx->state[3];
+ E = ctx->state[4];
+ F = ctx->state[5];
+ G = ctx->state[6];
+ H = ctx->state[7];
+ i = 0;
+
+ do
+ {
+ P( A, B, C, D, E, F, G, H, W[i], K[i] ); i++;
+ P( H, A, B, C, D, E, F, G, W[i], K[i] ); i++;
+ P( G, H, A, B, C, D, E, F, W[i], K[i] ); i++;
+ P( F, G, H, A, B, C, D, E, W[i], K[i] ); i++;
+ P( E, F, G, H, A, B, C, D, W[i], K[i] ); i++;
+ P( D, E, F, G, H, A, B, C, W[i], K[i] ); i++;
+ P( C, D, E, F, G, H, A, B, W[i], K[i] ); i++;
+ P( B, C, D, E, F, G, H, A, W[i], K[i] ); i++;
+ }
+ while( i < 80 );
+
+ ctx->state[0] += A;
+ ctx->state[1] += B;
+ ctx->state[2] += C;
+ ctx->state[3] += D;
+ ctx->state[4] += E;
+ ctx->state[5] += F;
+ ctx->state[6] += G;
+ ctx->state[7] += H;
+}
+
+/*
+ * SHA-512 process buffer
+ */
+void mbedtls_sha512_update( mbedtls_sha512_context *ctx, const unsigned char *input,
+ size_t ilen )
+{
+ size_t fill;
+ unsigned int left;
+
+ if( ilen == 0 )
+ return;
+
+ left = (unsigned int) (ctx->total[0] & 0x7F);
+ fill = 128 - left;
+
+ ctx->total[0] += (uint64_t) ilen;
+
+ if( ctx->total[0] < (uint64_t) ilen )
+ ctx->total[1]++;
+
+ if( left && ilen >= fill )
+ {
+ memcpy( (void *) (ctx->buffer + left), input, fill );
+ mbedtls_sha512_process( ctx, ctx->buffer );
+ input += fill;
+ ilen -= fill;
+ left = 0;
+ }
+
+ while( ilen >= 128 )
+ {
+ mbedtls_sha512_process( ctx, input );
+ input += 128;
+ ilen -= 128;
+ }
+
+ if( ilen > 0 )
+ memcpy( (void *) (ctx->buffer + left), input, ilen );
+}
+
+static const unsigned char sha512_padding[SHA512_BLOCK_LENGTH] =
+{
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/*
+ * SHA-512 final digest
+ */
+void mbedtls_sha512_finish( mbedtls_sha512_context *ctx, unsigned char* output )
+{
+ size_t last, padn;
+ uint64_t high, low;
+ unsigned char msglen[16];
+
+ high = ( ctx->total[0] >> 61 )
+ | ( ctx->total[1] << 3 );
+ low = ( ctx->total[0] << 3 );
+
+ PUT_UINT64_BE( high, msglen, 0 );
+ PUT_UINT64_BE( low, msglen, 8 );
+
+ last = (size_t)( ctx->total[0] & 0x7F );
+ padn = ( last < 112 ) ? ( 112 - last ) : ( 240 - last );
+
+ mbedtls_sha512_update( ctx, sha512_padding, padn );
+ mbedtls_sha512_update( ctx, msglen, 16 );
+
+ PUT_UINT64_BE( ctx->state[0], output, 0 );
+ PUT_UINT64_BE( ctx->state[1], output, 8 );
+ PUT_UINT64_BE( ctx->state[2], output, 16 );
+ PUT_UINT64_BE( ctx->state[3], output, 24 );
+ PUT_UINT64_BE( ctx->state[4], output, 32 );
+ PUT_UINT64_BE( ctx->state[5], output, 40 );
+
+ if( ctx->is384 == 0 )
+ {
+ PUT_UINT64_BE( ctx->state[6], output, 48 );
+ PUT_UINT64_BE( ctx->state[7], output, 56 );
+ }
+}
+
+/*
+ * output = SHA-512( input buffer )
+ */
+void mbedtls_sha512( const unsigned char *input, size_t ilen,
+ unsigned char* output, int is384 )
+{
+ mbedtls_sha512_context ctx;
+
+ mbedtls_sha512_init( &ctx );
+ mbedtls_sha512_starts( &ctx, is384 );
+ mbedtls_sha512_update( &ctx, input, ilen );
+ mbedtls_sha512_finish( &ctx, output );
+ mbedtls_sha512_free( &ctx );
+}
+
+/*
+* Compute HMAC_SHA384/512 using key, key length, text to hash, size of the text, output buffer and a switch for SHA384
+*/
+void HMAC_SHA512(const uint8_t* key, size_t key_length, const uint8_t *in, size_t n, uint8_t* out, int is384){
+ int digest_length = SHA512_DIGEST_LENGTH;
+ if (is384 == 1) {
+ digest_length = SHA384_DIGEST_LENGTH;
+ }
+
+ uint8_t i;
+ uint8_t k_ipad[SHA512_BLOCK_LENGTH]; /* inner padding - key XORd with ipad */
+ uint8_t k_opad[SHA512_BLOCK_LENGTH]; /* outer padding - key XORd with opad */
+ uint8_t buffer[SHA512_BLOCK_LENGTH + digest_length];
+
+ /* start out by storing key in pads */
+ memset(k_ipad, 0, sizeof(k_ipad));
+ memset(k_opad, 0, sizeof(k_opad));
+
+ if (key_length <= SHA512_BLOCK_LENGTH) {
+ memcpy(k_ipad, key, key_length);
+ memcpy(k_opad, key, key_length);
+ }
+
+ else {
+ mbedtls_sha512(key, key_length, k_ipad, is384);
+ memcpy(k_opad, k_ipad, SHA512_BLOCK_LENGTH);
+ }
+
+ /* XOR key with ipad and opad values */
+ for (i = 0; i < SHA512_BLOCK_LENGTH; i++) {
+ k_ipad[i] ^= HMAC_IPAD;
+ k_opad[i] ^= HMAC_OPAD;
+ }
+
+ // perform inner SHA512
+ memcpy(buffer, k_ipad, SHA512_BLOCK_LENGTH);
+ memcpy(buffer + SHA512_BLOCK_LENGTH, in, n);
+ mbedtls_sha512(buffer, SHA512_BLOCK_LENGTH + n, out, is384);
+
+ memset(buffer, 0, SHA512_BLOCK_LENGTH + n);
+
+ // perform outer SHA512
+ memcpy(buffer, k_opad, SHA512_BLOCK_LENGTH);
+ memcpy(buffer + SHA512_BLOCK_LENGTH, out, digest_length);
+ mbedtls_sha512(buffer, SHA512_BLOCK_LENGTH + digest_length, out, is384);
+}
+
+/*
+* Compute TOTP_HMAC_SHA384/512 using key, key length, text to hash, size of the text and a switch for SHA384
+*/
+uint32_t TOTP_HMAC_SHA512(const uint8_t* key, size_t key_length, const uint8_t *in, size_t n, int is384){
+ int digest_length = SHA512_DIGEST_LENGTH;
+ if (is384 == 1) {
+ digest_length = SHA384_DIGEST_LENGTH;
+ }
+
+ // STEP 1, get the HMAC-SHA512 hash from counter and key
+ uint8_t hash[digest_length];
+ HMAC_SHA512(key, key_length, in, n, hash, is384);
+
+ // STEP 2, apply dynamic truncation to obtain a 4-bytes string
+ uint32_t truncated_hash = 0;
+ uint8_t _offset = hash[digest_length - 1] & 0xF;
+ uint8_t j;
+ for (j = 0; j < 4; ++j) {
+ truncated_hash <<= 8;
+ truncated_hash |= hash[_offset + j];
+ }
+
+ // STEP 3, compute the OTP value
+ truncated_hash &= 0x7FFFFFFF; //Disabled
+ truncated_hash %= 1000000;
+
+ return truncated_hash;
+}
\ No newline at end of file |