Module encode 

Byte encoding/decoding and compression/decompression (Algorithms 3-6).

Functions

byte_decode

Unpack 32*d bytes into 256 integers (Algorithm 6: ByteDecode_d).

byte_encode

Bit-pack 256 integers into 32*d bytes (Algorithm 5: ByteEncode_d).

compress

Lossy compression from Z_q to Z_{2^d} (FIPS 203 eq. 4.7).

compress_poly

Compress all 256 coefficients of a polynomial from Z_q to Z_{2^d}.

decompress

Decompression from Z_{2^d} back to Z_q (FIPS 203 eq. 4.8).

decompress_poly

Decompress all 256 coefficients of a polynomial from Z_{2^d} to Z_q.