* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "libavutil/intreadwrite.h"
-
#include "avutil.h"
#include "common.h"
+#include "intreadwrite.h"
+#include "mem.h"
#include "blowfish.h"
+#if !FF_API_CRYPTO_CONTEXT
+#define AV_BF_ROUNDS 16
+
+struct AVBlowfish {
+ uint32_t p[AV_BF_ROUNDS + 2];
+ uint32_t s[4][256];
+};
+#endif
+
static const uint32_t orig_p[AV_BF_ROUNDS + 2] = {
0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
*xr = Xl;
}
+AVBlowfish *av_blowfish_alloc(void)
+{
+ return av_mallocz(sizeof(struct AVBlowfish));
+}
+
av_cold void av_blowfish_init(AVBlowfish *ctx, const uint8_t *key, int key_len)
{
uint32_t data, data_l, data_r;
uint32_t v0, v1;
int i;
- while (count > 0) {
- if (decrypt) {
+ if (decrypt) {
+ while (count--) {
v0 = AV_RB32(src);
v1 = AV_RB32(src + 4);
av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
- AV_WB32(dst, v0);
- AV_WB32(dst + 4, v1);
-
if (iv) {
- for (i = 0; i < 8; i++)
- dst[i] = dst[i] ^ iv[i];
+ v0 ^= AV_RB32(iv);
+ v1 ^= AV_RB32(iv + 4);
memcpy(iv, src, 8);
}
- } else {
+
+ AV_WB32(dst, v0);
+ AV_WB32(dst + 4, v1);
+
+ src += 8;
+ dst += 8;
+ }
+ } else {
+ while (count--) {
if (iv) {
for (i = 0; i < 8; i++)
dst[i] = src[i] ^ iv[i];
if (iv)
memcpy(iv, dst, 8);
- }
- src += 8;
- dst += 8;
- count -= 8;
- }
-}
-
-#ifdef TEST
-#include <stdio.h>
-#undef printf
-
-#define NUM_VARIABLE_KEY_TESTS 34
-
-/* plaintext bytes -- left halves */
-static const uint32_t plaintext_l[NUM_VARIABLE_KEY_TESTS] = {
- 0x00000000, 0xFFFFFFFF, 0x10000000, 0x11111111, 0x11111111,
- 0x01234567, 0x00000000, 0x01234567, 0x01A1D6D0, 0x5CD54CA8,
- 0x0248D438, 0x51454B58, 0x42FD4430, 0x059B5E08, 0x0756D8E0,
- 0x762514B8, 0x3BDD1190, 0x26955F68, 0x164D5E40, 0x6B056E18,
- 0x004BD6EF, 0x480D3900, 0x437540C8, 0x072D43A0, 0x02FE5577,
- 0x1D9D5C50, 0x30553228, 0x01234567, 0x01234567, 0x01234567,
- 0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF
-};
-
-/* plaintext bytes -- right halves */
-static const uint32_t plaintext_r[NUM_VARIABLE_KEY_TESTS] = {
- 0x00000000, 0xFFFFFFFF, 0x00000001, 0x11111111, 0x11111111,
- 0x89ABCDEF, 0x00000000, 0x89ABCDEF, 0x39776742, 0x3DEF57DA,
- 0x06F67172, 0x2DDF440A, 0x59577FA2, 0x51CF143A, 0x774761D2,
- 0x29BF486A, 0x49372802, 0x35AF609A, 0x4F275232, 0x759F5CCA,
- 0x09176062, 0x6EE762F2, 0x698F3CFA, 0x77075292, 0x8117F12A,
- 0x18F728C2, 0x6D6F295A, 0x89ABCDEF, 0x89ABCDEF, 0x89ABCDEF,
- 0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF
-};
-
-/* key bytes for variable key tests */
-static const uint8_t variable_key[NUM_VARIABLE_KEY_TESTS][8] = {
- { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
- { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
- { 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
- { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11 },
- { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
- { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11 },
- { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
- { 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 },
- { 0x7C, 0xA1, 0x10, 0x45, 0x4A, 0x1A, 0x6E, 0x57 },
- { 0x01, 0x31, 0xD9, 0x61, 0x9D, 0xC1, 0x37, 0x6E },
- { 0x07, 0xA1, 0x13, 0x3E, 0x4A, 0x0B, 0x26, 0x86 },
- { 0x38, 0x49, 0x67, 0x4C, 0x26, 0x02, 0x31, 0x9E },
- { 0x04, 0xB9, 0x15, 0xBA, 0x43, 0xFE, 0xB5, 0xB6 },
- { 0x01, 0x13, 0xB9, 0x70, 0xFD, 0x34, 0xF2, 0xCE },
- { 0x01, 0x70, 0xF1, 0x75, 0x46, 0x8F, 0xB5, 0xE6 },
- { 0x43, 0x29, 0x7F, 0xAD, 0x38, 0xE3, 0x73, 0xFE },
- { 0x07, 0xA7, 0x13, 0x70, 0x45, 0xDA, 0x2A, 0x16 },
- { 0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F },
- { 0x37, 0xD0, 0x6B, 0xB5, 0x16, 0xCB, 0x75, 0x46 },
- { 0x1F, 0x08, 0x26, 0x0D, 0x1A, 0xC2, 0x46, 0x5E },
- { 0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76 },
- { 0x02, 0x58, 0x16, 0x16, 0x46, 0x29, 0xB0, 0x07 },
- { 0x49, 0x79, 0x3E, 0xBC, 0x79, 0xB3, 0x25, 0x8F },
- { 0x4F, 0xB0, 0x5E, 0x15, 0x15, 0xAB, 0x73, 0xA7 },
- { 0x49, 0xE9, 0x5D, 0x6D, 0x4C, 0xA2, 0x29, 0xBF },
- { 0x01, 0x83, 0x10, 0xDC, 0x40, 0x9B, 0x26, 0xD6 },
- { 0x1C, 0x58, 0x7F, 0x1C, 0x13, 0x92, 0x4F, 0xEF },
- { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
- { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
- { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
- { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
- { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
- { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
- { 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 }
-};
-
-/* ciphertext bytes -- left halves */
-static const uint32_t ciphertext_l[NUM_VARIABLE_KEY_TESTS] = {
- 0x4EF99745, 0x51866FD5, 0x7D856F9A, 0x2466DD87, 0x61F9C380,
- 0x7D0CC630, 0x4EF99745, 0x0ACEAB0F, 0x59C68245, 0xB1B8CC0B,
- 0x1730E577, 0xA25E7856, 0x353882B1, 0x48F4D088, 0x432193B7,
- 0x13F04154, 0x2EEDDA93, 0xD887E039, 0x5F99D04F, 0x4A057A3B,
- 0x452031C1, 0x7555AE39, 0x53C55F9C, 0x7A8E7BFA, 0xCF9C5D7A,
- 0xD1ABB290, 0x55CB3774, 0xFA34EC48, 0xA7907951, 0xC39E072D,
- 0x014933E0, 0xF21E9A77, 0x24594688, 0x6B5C5A9C
-};
-
-/* ciphertext bytes -- right halves */
-static const uint32_t ciphertext_r[NUM_VARIABLE_KEY_TESTS] = {
- 0x6198DD78, 0xB85ECB8A, 0x613063F2, 0x8B963C9D, 0x2281B096,
- 0xAFDA1EC7, 0x6198DD78, 0xC6A0A28D, 0xEB05282B, 0x250F09A0,
- 0x8BEA1DA4, 0xCF2651EB, 0x09CE8F1A, 0x4C379918, 0x8951FC98,
- 0xD69D1AE5, 0xFFD39C79, 0x3C2DA6E3, 0x5B163969, 0x24D3977B,
- 0xE4FADA8E, 0xF59B87BD, 0xB49FC019, 0x937E89A3, 0x4986ADB5,
- 0x658BC778, 0xD13EF201, 0x47B268B2, 0x08EA3CAE, 0x9FAC631D,
- 0xCDAFF6E4, 0xB71C49BC, 0x5754369A, 0x5D9E0A5A
-};
-
-/* plaintext bytes */
-static const uint8_t plaintext[8] = "BLOWFISH";
-
-/* ciphertext bytes */
-static const uint8_t ciphertext[8] = {
- 0x32, 0x4E, 0xD0, 0xFE, 0xF4, 0x13, 0xA2, 0x03
-};
-
-int main(void)
-{
- AVBlowfish ctx;
- uint32_t tmptext_l[NUM_VARIABLE_KEY_TESTS];
- uint32_t tmptext_r[NUM_VARIABLE_KEY_TESTS];
- uint8_t tmp[8];
- int i;
-
- av_blowfish_init(&ctx, "abcdefghijklmnopqrstuvwxyz", 26);
-
- av_blowfish_crypt(&ctx, tmp, plaintext, 1, NULL, 0);
- if (memcmp(tmp, ciphertext, 8)) {
- printf("Test encryption failed.\n");
- return 1;
- }
-
- av_blowfish_crypt(&ctx, tmp, ciphertext, 1, NULL, 1);
- if (memcmp(tmp, plaintext, 8)) {
- printf("Test decryption failed.\n");
- return 1;
- }
-
- memcpy(tmptext_l, plaintext_l, sizeof(*plaintext_l) * NUM_VARIABLE_KEY_TESTS);
- memcpy(tmptext_r, plaintext_r, sizeof(*plaintext_r) * NUM_VARIABLE_KEY_TESTS);
-
- for (i = 0; i < NUM_VARIABLE_KEY_TESTS; i++) {
- av_blowfish_init(&ctx, variable_key[i], 8);
-
- av_blowfish_crypt_ecb(&ctx, &tmptext_l[i], &tmptext_r[i], 0);
- if (tmptext_l[i] != ciphertext_l[i] || tmptext_r[i] != ciphertext_r[i]) {
- printf("Test encryption failed.\n");
- return 1;
- }
-
- av_blowfish_crypt_ecb(&ctx, &tmptext_l[i], &tmptext_r[i], 1);
- if (tmptext_l[i] != plaintext_l[i] || tmptext_r[i] != plaintext_r[i]) {
- printf("Test decryption failed.\n");
- return 1;
+ src += 8;
+ dst += 8;
}
}
- printf("Test encryption/decryption success.\n");
-
- return 0;
}
-
-#endif
projects / ffmpeg / blobdiff