Developer Reference

Contents

Usage Example

////////////////////////// Usage example for AES-SIV primitives ////////////////////// // key: Ipp8u key[] = "\x7f\x7e\x7d\x7c\x7b\x7a\x79\x78\x77\x76\x75\x74\x73\x72\x71\x70" "\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f"; // ADs: Ipp8u ad1[] = "\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff" "\xde\xad\xda\xda\xde\xad\xda\xda\xff\xee\xdd\xcc\xbb\xaa\x99\x88" "\x77\x66\x55\x44\x33\x22\x11\x00"; Ipp8u ad2[] = "\x10\x20\x30\x40\x50\x60\x70\x80\x90\xa0"; Ipp8u nonce[] = "\x09\xf9\x11\x02\x9d\x74\xe3\x5b\xd8\x41\x56\xc5\x63\x56\x88\xc0"; // PT Ipp8u pt[] = "\x74\x68\x69\x73\x20\x69\x73\x20\x73\x6f\x6d\x65\x20\x70\x6c\x61" "\x69\x6e\x74\x65\x78\x74\x20\x74\x6f\x20\x65\x6e\x63\x72\x79\x70" "\x74\x20\x75\x73\x69\x6e\x67\x20\x53\x49\x56\x2d\x41\x45\x53"; Ipp8u rt[sizeof(pt)]; int authRes = 0xaa; Ipp8u auth_ct[16+sizeof(pt)-1]; Ipp8u* adSlist[] = {ad1, ad2, nonce, pt}; int adLlist[] = {(int)(sizeof(ad1)-1), (int)(sizeof(ad2)-1), (int)(sizeof(nonce)-1), sizeof(pt)-1}; Ipp8u v[16]; // compute ISV ippsAES_S2V_CMAC(key, 16, (const Ipp8u**)adSlist, adLlist, sizeof(adSlist)/sizeof(void*), v); // encode ippsAES_SIVEncrypt(pt, auth_ct+16, sizeof(pt)-1, auth_ct, key, key+16, 16, (const Ipp8u**)adSlist, adLlist, sizeof(adSlist)/sizeof(void*)-1); // decode ippsAES_SIVDecrypt(auth_ct+16, rt, sizeof(pt)-1, &authRes, key, key+16, 16, (const Ipp8u**)adSlist, adLlist, sizeof(adSlist)/sizeof(void*)-1, auth_ct); if((1==authRes) && (0==memcmp(pt, rt, sizeof(pt)-1))) printf("authenticated decryption passed\n"); else printf("authenticated decryption failed\n"); //////////////////////////////////////////////////////////////////////

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.