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Add the SM4 block cipher, also a no-padding option for decrypting block ciphers. #1189

Merged
merged 1 commit into from
Mar 29, 2022
Merged

Add the SM4 block cipher, also a no-padding option for decrypting block ciphers. #1189

merged 1 commit into from
Mar 29, 2022

Commits on Mar 23, 2021

  1. Add the SM4 block cipher, also a no-padding option for block ciphers. 

    This adds an implementation of the SM4 block cipher, and operations
to encrypt and decrypt using it with CBC,ECB,CFB,OFB,CTR modes.

Also, a "no padding" option is added for AES,DES,3DES and SM4
decryption in ECB/CBC modes. This variant does not attempt to
validate the last block as being PKCS#7 padded.

This is useful, both since other padding schemes exist, and also
for decrypting data where the final block is missing.
    @swesven
    swesven committed Mar 23, 2021
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