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-rw-r--r--twmincrypt/Android.mk11
-rw-r--r--twmincrypt/twrsa.c199
-rw-r--r--twmincrypt/twrsa.h56
-rw-r--r--twmincrypt/twsha.c307
-rw-r--r--twmincrypt/twsha.h63
5 files changed, 11 insertions, 625 deletions
diff --git a/twmincrypt/Android.mk b/twmincrypt/Android.mk
new file mode 100644
index 000000000..0e1fbfd9a
--- /dev/null
+++ b/twmincrypt/Android.mk
@@ -0,0 +1,11 @@
+# This provides a rule to make libmincrypt as a shared library.
+# As a static library, zip signature verification was crashing.
+# Making it as a shared library seems to fix that issue.
+
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS:= eng
+LOCAL_MODULE := libmincrypt
+LOCAL_SRC_FILES := ../../../system/core/libmincrypt/rsa.c ../../../system/core/libmincrypt/sha.c
+include $(BUILD_SHARED_LIBRARY)
diff --git a/twmincrypt/twrsa.c b/twmincrypt/twrsa.c
deleted file mode 100644
index 52d6bfbc2..000000000
--- a/twmincrypt/twrsa.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/* rsa.c
-**
-** Copyright 2008, The Android Open Source Project
-**
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in the
-** documentation and/or other materials provided with the distribution.
-** * Neither the name of Google Inc. nor the names of its contributors may
-** be used to endorse or promote products derived from this software
-** without specific prior written permission.
-**
-** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
-** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#include "twrsa.h"
-#include "twsha.h"
-#include "common.h"
-
-/* a[] -= mod */
-static void subM(const RSAPublicKey *key, uint32_t *a) {
- int64_t A = 0;
- int i;
- for (i = 0; i < key->len; ++i) {
- A += (uint64_t)a[i] - key->n[i];
- a[i] = (uint32_t)A;
- A >>= 32;
- }
-}
-
-/* return a[] >= mod */
-static int geM(const RSAPublicKey *key, const uint32_t *a) {
- int i;
- for (i = key->len; i;) {
- --i;
- if (a[i] < key->n[i]) return 0;
- if (a[i] > key->n[i]) return 1;
- }
- return 1; /* equal */
-}
-
-/* montgomery c[] += a * b[] / R % mod */
-static void montMulAdd(const RSAPublicKey *key,
- uint32_t* c,
- const uint32_t a,
- const uint32_t* b) {
- uint64_t A = (uint64_t)a * b[0] + c[0];
- uint32_t d0 = (uint32_t)A * key->n0inv;
- uint64_t B = (uint64_t)d0 * key->n[0] + (uint32_t)A;
- int i;
-
- for (i = 1; i < key->len; ++i) {
- A = (A >> 32) + (uint64_t)a * b[i] + c[i];
- B = (B >> 32) + (uint64_t)d0 * key->n[i] + (uint32_t)A;
- c[i - 1] = (uint32_t)B;
- }
-
- A = (A >> 32) + (B >> 32);
-
- c[i - 1] = (uint32_t)A;
-
- if (A >> 32) {
- subM(key, c);
- }
-}
-
-/* montgomery c[] = a[] * b[] / R % mod */
-static void montMul(const RSAPublicKey *key,
- uint32_t* c,
- const uint32_t* a,
- const uint32_t* b) {
- int i;
- for (i = 0; i < key->len; ++i) {
- c[i] = 0;
- }
- for (i = 0; i < key->len; ++i) {
- montMulAdd(key, c, a[i], b);
- }
-}
-
-/* In-place public exponentiation.
-** Input and output big-endian byte array in inout.
-*/
-static void modpow3(const RSAPublicKey *key,
- uint8_t* inout) {
- uint32_t a[RSANUMWORDS];
- uint32_t aR[RSANUMWORDS];
- uint32_t aaR[RSANUMWORDS];
- uint32_t *aaa = aR; /* Re-use location. */
- int i;
-
- /* Convert from big endian byte array to little endian word array. */
- for (i = 0; i < key->len; ++i) {
- uint32_t tmp =
- (inout[((key->len - 1 - i) * 4) + 0] << 24) |
- (inout[((key->len - 1 - i) * 4) + 1] << 16) |
- (inout[((key->len - 1 - i) * 4) + 2] << 8) |
- (inout[((key->len - 1 - i) * 4) + 3] << 0);
- a[i] = tmp;
- }
-
- montMul(key, aR, a, key->rr); /* aR = a * RR / R mod M */
- montMul(key, aaR, aR, aR); /* aaR = aR * aR / R mod M */
- montMul(key, aaa, aaR, a); /* aaa = aaR * a / R mod M */
-
- /* Make sure aaa < mod; aaa is at most 1x mod too large. */
- if (geM(key, aaa)) {
- subM(key, aaa);
- }
-
- /* Convert to bigendian byte array */
- for (i = key->len - 1; i >= 0; --i) {
- uint32_t tmp = aaa[i];
- *inout++ = tmp >> 24;
- *inout++ = tmp >> 16;
- *inout++ = tmp >> 8;
- *inout++ = tmp >> 0;
- }
-}
-
-/* Expected PKCS1.5 signature padding bytes, for a keytool RSA signature.
-** Has the 0-length optional parameter encoded in the ASN1 (as opposed to the
-** other flavor which omits the optional parameter entirely). This code does not
-** accept signatures without the optional parameter.
-*/
-static const uint8_t padding[RSANUMBYTES - SHA_DIGEST_SIZE] = {
- 0x00,0x01,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,
- 0x30,0x21,0x30,0x09,0x06,0x05,0x2b,0x0e,0x03,0x02,0x1a,0x05,0x00,
- 0x04,0x14
-};
-
-/* Verify a 2048 bit RSA PKCS1.5 signature against an expected SHA-1 hash.
-** Returns 0 on failure, 1 on success.
-*/
-int RSA_verify(const RSAPublicKey *key,
- const uint8_t *signature,
- const int len,
- const uint8_t *sha) {
- uint8_t buf[RSANUMBYTES];
- int i;
-
- if (key->len != RSANUMWORDS) {
- return 0; /* Wrong key passed in. */
- }
-
- if (len != sizeof(buf)) {
- return 0; /* Wrong input length. */
- }
-
- for (i = 0; i < len; ++i) {
- buf[i] = signature[i];
- }
-
- modpow3(key, buf);
-
- /* Check pkcs1.5 padding bytes. */
- for (i = 0; i < (int) sizeof(padding); ++i) {
- if (buf[i] != padding[i]) {
- return 0;
- }
- }
-
- /* Check sha digest matches. */
- for (; i < len; ++i) {
- if (buf[i] != *sha++) {
- return 0;
- }
- }
-
- return 1;
-}
diff --git a/twmincrypt/twrsa.h b/twmincrypt/twrsa.h
deleted file mode 100644
index 7d7d57158..000000000
--- a/twmincrypt/twrsa.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/* rsa.h
-**
-** Copyright 2008, The Android Open Source Project
-**
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in the
-** documentation and/or other materials provided with the distribution.
-** * Neither the name of Google Inc. nor the names of its contributors may
-** be used to endorse or promote products derived from this software
-** without specific prior written permission.
-**
-** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
-** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#ifndef _EMBEDDED_RSA_H_
-#define _EMBEDDED_RSA_H_
-
-#include <inttypes.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define RSANUMBYTES 256 /* 2048 bit key length */
-#define RSANUMWORDS (RSANUMBYTES / sizeof(uint32_t))
-
-typedef struct RSAPublicKey {
- int len; /* Length of n[] in number of uint32_t */
- uint32_t n0inv; /* -1 / n[0] mod 2^32 */
- uint32_t n[RSANUMWORDS]; /* modulus as little endian array */
- uint32_t rr[RSANUMWORDS]; /* R^2 as little endian array */
-} RSAPublicKey;
-
-int RSA_verify(const RSAPublicKey *key,
- const uint8_t* signature,
- const int len,
- const uint8_t* sha);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/twmincrypt/twsha.c b/twmincrypt/twsha.c
deleted file mode 100644
index ac712c245..000000000
--- a/twmincrypt/twsha.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/* sha.c
-**
-** Copyright 2008, The Android Open Source Project
-**
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in the
-** documentation and/or other materials provided with the distribution.
-** * Neither the name of Google Inc. nor the names of its contributors may
-** be used to endorse or promote products derived from this software
-** without specific prior written permission.
-**
-** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
-** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#include "twsha.h"
-
-// Some machines lack byteswap.h and endian.h. These have to use the
-// slower code, even if they're little-endian.
-
-#if defined(HAVE_ENDIAN_H) && defined(HAVE_LITTLE_ENDIAN)
-
-#include <byteswap.h>
-#include <memory.h>
-
-// This version is about 28% faster than the generic version below,
-// but assumes little-endianness.
-
-static inline uint32_t ror27(uint32_t val) {
- return (val >> 27) | (val << 5);
-}
-static inline uint32_t ror2(uint32_t val) {
- return (val >> 2) | (val << 30);
-}
-static inline uint32_t ror31(uint32_t val) {
- return (val >> 31) | (val << 1);
-}
-
-static void SHA1_Transform(SHA_CTX* ctx) {
- uint32_t W[80];
- register uint32_t A, B, C, D, E;
- int t;
-
- A = ctx->state[0];
- B = ctx->state[1];
- C = ctx->state[2];
- D = ctx->state[3];
- E = ctx->state[4];
-
-#define SHA_F1(A,B,C,D,E,t) \
- E += ror27(A) + \
- (W[t] = bswap_32(ctx->buf.w[t])) + \
- (D^(B&(C^D))) + 0x5A827999; \
- B = ror2(B);
-
- for (t = 0; t < 15; t += 5) {
- SHA_F1(A,B,C,D,E,t + 0);
- SHA_F1(E,A,B,C,D,t + 1);
- SHA_F1(D,E,A,B,C,t + 2);
- SHA_F1(C,D,E,A,B,t + 3);
- SHA_F1(B,C,D,E,A,t + 4);
- }
- SHA_F1(A,B,C,D,E,t + 0); // 16th one, t == 15
-
-#undef SHA_F1
-
-#define SHA_F1(A,B,C,D,E,t) \
- E += ror27(A) + \
- (W[t] = ror31(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16])) + \
- (D^(B&(C^D))) + 0x5A827999; \
- B = ror2(B);
-
- SHA_F1(E,A,B,C,D,t + 1);
- SHA_F1(D,E,A,B,C,t + 2);
- SHA_F1(C,D,E,A,B,t + 3);
- SHA_F1(B,C,D,E,A,t + 4);
-
-#undef SHA_F1
-
-#define SHA_F2(A,B,C,D,E,t) \
- E += ror27(A) + \
- (W[t] = ror31(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16])) + \
- (B^C^D) + 0x6ED9EBA1; \
- B = ror2(B);
-
- for (t = 20; t < 40; t += 5) {
- SHA_F2(A,B,C,D,E,t + 0);
- SHA_F2(E,A,B,C,D,t + 1);
- SHA_F2(D,E,A,B,C,t + 2);
- SHA_F2(C,D,E,A,B,t + 3);
- SHA_F2(B,C,D,E,A,t + 4);
- }
-
-#undef SHA_F2
-
-#define SHA_F3(A,B,C,D,E,t) \
- E += ror27(A) + \
- (W[t] = ror31(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16])) + \
- ((B&C)|(D&(B|C))) + 0x8F1BBCDC; \
- B = ror2(B);
-
- for (; t < 60; t += 5) {
- SHA_F3(A,B,C,D,E,t + 0);
- SHA_F3(E,A,B,C,D,t + 1);
- SHA_F3(D,E,A,B,C,t + 2);
- SHA_F3(C,D,E,A,B,t + 3);
- SHA_F3(B,C,D,E,A,t + 4);
- }
-
-#undef SHA_F3
-
-#define SHA_F4(A,B,C,D,E,t) \
- E += ror27(A) + \
- (W[t] = ror31(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16])) + \
- (B^C^D) + 0xCA62C1D6; \
- B = ror2(B);
-
- for (; t < 80; t += 5) {
- SHA_F4(A,B,C,D,E,t + 0);
- SHA_F4(E,A,B,C,D,t + 1);
- SHA_F4(D,E,A,B,C,t + 2);
- SHA_F4(C,D,E,A,B,t + 3);
- SHA_F4(B,C,D,E,A,t + 4);
- }
-
-#undef SHA_F4
-
- ctx->state[0] += A;
- ctx->state[1] += B;
- ctx->state[2] += C;
- ctx->state[3] += D;
- ctx->state[4] += E;
-}
-
-void SHA_update(SHA_CTX* ctx, const void* data, int len) {
- int i = ctx->count % sizeof(ctx->buf);
- const uint8_t* p = (const uint8_t*)data;
-
- ctx->count += len;
-
- while (len > sizeof(ctx->buf) - i) {
- memcpy(&ctx->buf.b[i], p, sizeof(ctx->buf) - i);
- len -= sizeof(ctx->buf) - i;
- p += sizeof(ctx->buf) - i;
- SHA1_Transform(ctx);
- i = 0;
- }
-
- while (len--) {
- ctx->buf.b[i++] = *p++;
- if (i == sizeof(ctx->buf)) {
- SHA1_Transform(ctx);
- i = 0;
- }
- }
-}
-
-
-const uint8_t* SHA_final(SHA_CTX* ctx) {
- uint64_t cnt = ctx->count * 8;
- int i;
-
- SHA_update(ctx, (uint8_t*)"\x80", 1);
- while ((ctx->count % sizeof(ctx->buf)) != (sizeof(ctx->buf) - 8)) {
- SHA_update(ctx, (uint8_t*)"\0", 1);
- }
- for (i = 0; i < 8; ++i) {
- uint8_t tmp = cnt >> ((7 - i) * 8);
- SHA_update(ctx, &tmp, 1);
- }
-
- for (i = 0; i < 5; i++) {
- ctx->buf.w[i] = bswap_32(ctx->state[i]);
- }
-
- return ctx->buf.b;
-}
-
-#else // #if defined(HAVE_ENDIAN_H) && defined(HAVE_LITTLE_ENDIAN)
-
-#define rol(bits, value) (((value) << (bits)) | ((value) >> (32 - (bits))))
-
-static void SHA1_transform(SHA_CTX *ctx) {
- uint32_t W[80];
- uint32_t A, B, C, D, E;
- uint8_t *p = ctx->buf;
- int t;
-
- for(t = 0; t < 16; ++t) {
- uint32_t tmp = *p++ << 24;
- tmp |= *p++ << 16;
- tmp |= *p++ << 8;
- tmp |= *p++;
- W[t] = tmp;
- }
-
- for(; t < 80; t++) {
- W[t] = rol(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]);
- }
-
- A = ctx->state[0];
- B = ctx->state[1];
- C = ctx->state[2];
- D = ctx->state[3];
- E = ctx->state[4];
-
- for(t = 0; t < 80; t++) {
- uint32_t tmp = rol(5,A) + E + W[t];
-
- if (t < 20)
- tmp += (D^(B&(C^D))) + 0x5A827999;
- else if ( t < 40)
- tmp += (B^C^D) + 0x6ED9EBA1;
- else if ( t < 60)
- tmp += ((B&C)|(D&(B|C))) + 0x8F1BBCDC;
- else
- tmp += (B^C^D) + 0xCA62C1D6;
-
- E = D;
- D = C;
- C = rol(30,B);
- B = A;
- A = tmp;
- }
-
- ctx->state[0] += A;
- ctx->state[1] += B;
- ctx->state[2] += C;
- ctx->state[3] += D;
- ctx->state[4] += E;
-}
-
-void SHA_update(SHA_CTX *ctx, const void *data, int len) {
- int i = ctx->count % sizeof(ctx->buf);
- const uint8_t* p = (const uint8_t*)data;
-
- ctx->count += len;
-
- while (len--) {
- ctx->buf[i++] = *p++;
- if (i == sizeof(ctx->buf)) {
- SHA1_transform(ctx);
- i = 0;
- }
- }
-}
-const uint8_t *SHA_final(SHA_CTX *ctx) {
- uint8_t *p = ctx->buf;
- uint64_t cnt = ctx->count * 8;
- int i;
-
- SHA_update(ctx, (uint8_t*)"\x80", 1);
- while ((ctx->count % sizeof(ctx->buf)) != (sizeof(ctx->buf) - 8)) {
- SHA_update(ctx, (uint8_t*)"\0", 1);
- }
- for (i = 0; i < 8; ++i) {
- uint8_t tmp = cnt >> ((7 - i) * 8);
- SHA_update(ctx, &tmp, 1);
- }
-
- for (i = 0; i < 5; i++) {
- uint32_t tmp = ctx->state[i];
- *p++ = tmp >> 24;
- *p++ = tmp >> 16;
- *p++ = tmp >> 8;
- *p++ = tmp >> 0;
- }
-
- return ctx->buf;
-}
-
-#endif // endianness
-
-void SHA_init(SHA_CTX* ctx) {
- ctx->state[0] = 0x67452301;
- ctx->state[1] = 0xEFCDAB89;
- ctx->state[2] = 0x98BADCFE;
- ctx->state[3] = 0x10325476;
- ctx->state[4] = 0xC3D2E1F0;
- ctx->count = 0;
-}
-
-/* Convenience function */
-const uint8_t* SHA(const void *data, int len, uint8_t *digest) {
- const uint8_t *p;
- int i;
- SHA_CTX ctx;
- SHA_init(&ctx);
- SHA_update(&ctx, data, len);
- p = SHA_final(&ctx);
- for (i = 0; i < SHA_DIGEST_SIZE; ++i) {
- digest[i] = *p++;
- }
- return digest;
-}
diff --git a/twmincrypt/twsha.h b/twmincrypt/twsha.h
deleted file mode 100644
index af63e8775..000000000
--- a/twmincrypt/twsha.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/* sha.h
-**
-** Copyright 2008, The Android Open Source Project
-**
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in the
-** documentation and/or other materials provided with the distribution.
-** * Neither the name of Google Inc. nor the names of its contributors may
-** be used to endorse or promote products derived from this software
-** without specific prior written permission.
-**
-** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
-** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#ifndef _EMBEDDED_SHA_H_
-#define _EMBEDDED_SHA_H_
-
-#include <inttypes.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct SHA_CTX {
- uint64_t count;
- uint32_t state[5];
-#if defined(HAVE_ENDIAN_H) && defined(HAVE_LITTLE_ENDIAN)
- union {
- uint8_t b[64];
- uint32_t w[16];
- } buf;
-#else
- uint8_t buf[64];
-#endif
-} SHA_CTX;
-
-void SHA_init(SHA_CTX* ctx);
-void SHA_update(SHA_CTX* ctx, const void* data, int len);
-const uint8_t* SHA_final(SHA_CTX* ctx);
-
-/* Convenience method. Returns digest parameter value. */
-const uint8_t* SHA(const void* data, int len, uint8_t* digest);
-
-#define SHA_DIGEST_SIZE 20
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
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