29 #define MAX_HASHLEN 20
30 #define MAX_BLOCKLEN 64
98 memcpy(c->
key, key, keylen);
102 for (i = 0; i < c->
keylen; i++)
103 block[i] = c->
key[i] ^ 0x36;
104 for (i = c->
keylen; i < c->blocklen; i++)
118 if (outlen < c->hashlen)
122 for (i = 0; i < c->
keylen; i++)
123 block[i] = c->
key[i] ^ 0x5C;
124 for (i = c->
keylen; i < c->blocklen; i++)
133 const uint8_t *key,
unsigned int keylen,
151 if (!key[keylen - 1])
153 if (!data[datalen - 1])
155 out =
av_hmac_calc(hmac, data, datalen, key, keylen, buf,
sizeof(buf));
156 for (i = 0; i <
out; i++)
157 printf(
"%02x", buf[i]);
163 uint8_t key1[16], key3[16], data3[50], key4[63], key5[64], key6[65];
165 const uint8_t data1[] =
"Hi There";
166 const uint8_t data2[] =
"what do ya want for nothing?";
170 memset(key1, 0x0b,
sizeof(key1));
171 memset(key3, 0xaa,
sizeof(key3));
172 memset(key4, 0x44,
sizeof(key4));
173 memset(key5, 0x55,
sizeof(key5));
174 memset(key6, 0x66,
sizeof(key6));
175 memset(data3, 0xdd,
sizeof(data3));
177 test(hmac, key1,
sizeof(key1), data1,
sizeof(data1));
178 test(hmac, key2,
sizeof(key2), data2,
sizeof(data2));
179 test(hmac, key3,
sizeof(key3), data3,
sizeof(data3));
181 test(hmac, key4,
sizeof(key4), data1,
sizeof(data1));
182 test(hmac, key5,
sizeof(key5), data2,
sizeof(data2));
183 test(hmac, key6,
sizeof(key6), data3,
sizeof(data3));
void av_sha_final(AVSHA *ctx, uint8_t *digest)
Finish hashing and output digest value.
int av_hmac_calc(AVHMAC *c, const uint8_t *data, unsigned int len, const uint8_t *key, unsigned int keylen, uint8_t *out, unsigned int outlen)
Hash an array of data with a key.
void av_sha_update(AVSHA *ctx, const uint8_t *data, unsigned int len)
Update hash value.
AVHMAC * av_hmac_alloc(enum AVHMACType type)
Allocate an AVHMAC context.
av_cold int av_sha_init(AVSHA *ctx, int bits)
Initialize SHA-1 or SHA-2 hashing.
memory handling functions
Macro definitions for various function/variable attributes.
struct AVMD5 * av_md5_alloc(void)
void av_hmac_update(AVHMAC *c, const uint8_t *data, unsigned int len)
Hash data with the HMAC.
void av_md5_update(AVMD5 *ctx, const uint8_t *src, const int len)
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
int main(int argc, char **argv)
static av_cold void sha1_init(void *ctx)
static void test(const char *pattern, const char *host)
void av_hmac_init(AVHMAC *c, const uint8_t *key, unsigned int keylen)
Initialize an AVHMAC context with an authentication key.
uint8_t key[MAX_BLOCKLEN]
void(* final)(void *, uint8_t *)
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
struct AVSHA * av_sha_alloc(void)
Allocate an AVSHA context.
void av_md5_init(AVMD5 *ctx)
void av_md5_final(AVMD5 *ctx, uint8_t *dst)
int av_hmac_final(AVHMAC *c, uint8_t *out, unsigned int outlen)
Finish hashing and output the HMAC digest.
void(* update)(void *, const uint8_t *, int len)
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
void av_hmac_free(AVHMAC *c)
Free an AVHMAC context.
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...