Questions tagged [sgcm]

Sophie-Germain Counter Mode, an alternative to Galois Counter Mode (GCM) for systems lacking acceleration for polynomial multiplication.

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How to handle the extra 12451 elements in Sophie-Germain Counter Mode?

In Sophie-Germain Counter Mode (SGCM), the $GF(2^{128})$ field multiplication of Galois Counter Mode (GCM) is replaced with normal multiplication $\bmod 2^{128}+12451$. Because the block size is 128 ...