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iOS 8 and 9 decryption now works; need to test AAC audio decompression.

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This commit is contained in:
fduncanh
2021-12-18 17:34:11 -05:00
parent b0c8336960
commit a8657e497b
7 changed files with 70 additions and 42 deletions
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18
lib/raop_buffer.c
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@@ -152,8 +152,8 @@ raop_buffer_decrypt(raop_buffer_t *raop_buffer, unsigned char *data, unsigned ch
#endif
if (DECRYPTION_TEST) {
printf("%s\n", OLD_PROTOCOL_AUDIO_CLIENT_LIST);
printf("%d before %s", payload_size, utils_data_to_string(&data[12],16,16 ));
printf("encrypted header %s", utils_data_to_string(data,12,12));
if (payload_size) printf("%d before %s", payload_size, utils_data_to_string(&data[12],16,16 ));
}
encryptedlen = payload_size / 16*16;
memset(output, 0, payload_size);
@@ -164,9 +164,17 @@ raop_buffer_decrypt(raop_buffer_t *raop_buffer, unsigned char *data, unsigned ch
memcpy(output + encryptedlen, &data[12 + encryptedlen], payload_size - encryptedlen);
*outputlen = payload_size;
if (DECRYPTION_TEST){
if ( !(output[0] == 0x8d || output[0] == 0x8e || output[0] == 0x20)) printf("***ERROR AUDIO FRAME IS NOT AAC_ELD OR ALAC\n");
printf("%d after %s\n", payload_size, utils_data_to_string(output,16,16 ));
if (payload_size && DECRYPTION_TEST){
if ( !(output[0] == 0x8d || output[0] == 0x8e || output[0] == 0x81 || output[0] == 0x82 || output[0] == 0x20)) {
printf("***ERROR AUDIO FRAME IS NOT AAC_ELD OR ALAC\n");
}
if (DECRYPTION_TEST == 2) {
printf("decrypted audio frame, len = %d\n", *outputlen);
printf("%s",utils_data_to_string(output,payload_size,16));
printf("\n");
} else {
printf("%d after %s\n", payload_size, utils_data_to_string(output,16,16 ));
}
}
#ifdef DUMP_AUDIO
// Decrypted file