SM4 is a block cipher standard published by the government of the People's Republic of China, and it was issued by the State Cryptography Administration on March 21, 2012. The standard is GM/T 0002-2012 "SM4 block cipher algorithm".
SM4 algorithm is a symmetric cipher algorithm in ShangMi cryptosystems. The block length and key length are both 128 bits. Both the encryption algorithm and the key derivation algorithm use 32 rounds of non-linear iterative structure, and the S box is a fixed 8 bits. The RFC 8998 specification defines the usage of ShangMi algorithm suite in TLS 1.3, etc. According to the State Cryptography Administration of China, its security and efficiency are equivalent to AES-128. Reference specification: 1. http://www.gmbz.org.cn/upload/2018-04-04/1522788048733065051.pdf 2. http://gmbz.org.cn/main/viewfile/20180108015408199368.html 3. https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html 4. https://datatracker.ietf.org/doc/html/rfc8998 Tianjia Zhang (7): doc: Add Copyright of SM3 hash algorithm Introduce SM4 symmetric cipher algorithm testsuite: add test for SM4 symmetric algorithm nettle-benchmark: bench SM4 symmetric algorithm doc: documentation for SM4 cipher algorithm gcm: Add SM4 as the GCM underlying cipher doc: documentation for GCM using SM4 cipher Makefile.in | 2 + examples/nettle-benchmark.c | 2 + gcm-sm4-meta.c | 60 ++++++++++ gcm-sm4.c | 81 +++++++++++++ gcm.h | 25 +++- nettle-meta-aeads.c | 1 + nettle-meta-ciphers.c | 1 + nettle-meta.h | 3 + nettle.texinfo | 81 +++++++++++++ sm4-meta.c | 49 ++++++++ sm4.c | 225 +++++++++++++++++++++++++++++++++++ sm4.h | 71 +++++++++++ testsuite/.gitignore | 1 + testsuite/Makefile.in | 2 +- testsuite/gcm-test.c | 18 +++ testsuite/meta-aead-test.c | 1 + testsuite/meta-cipher-test.c | 3 +- testsuite/sm4-test.c | 19 +++ 18 files changed, 642 insertions(+), 3 deletions(-) create mode 100644 gcm-sm4-meta.c create mode 100644 gcm-sm4.c create mode 100644 sm4-meta.c create mode 100644 sm4.c create mode 100644 sm4.h create mode 100644 testsuite/sm4-test.c -- 2.32.0 _______________________________________________ nettle-bugs mailing list [email protected] http://lists.lysator.liu.se/mailman/listinfo/nettle-bugs
