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[Source] .NET/C# uses the SM3 algorithm to generate signatures

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Posted on 2025-3-16 21:34:27 | | | |
Requirements: Connect with the customer, the customer is a Java development project, and both parties need to encrypt and sign the data, in which the signature uses SM3 to generate summary information.

SM3 is a cryptographic hash function standard adopted by the government of the People's Republic of China, released by the State Cryptography Administration on December 17, 2010. The relevant standard is "GM/T 0004-2012 "SM3 Cryptographic Hashing Algorithm".
In commercial cryptography, SM3 is mainly used for digital signature and verification, message authentication code generation and verification, random number generation, etc., and its algorithm is public. According to the National Cryptography Administration, its security and efficiency are comparable to SHA-256.

Announcement of the State Cryptography Administration on the release of the "SM3 Cryptographic Hashing Algorithm":The hyperlink login is visible.
PDF document:The hyperlink login is visible.

The project needs to reference the BouncyCastle.Cryptography library, as follows:

The code is as follows:

As shown below:



Original: itsvse.com Little scum
SM3 Hash: b28255a4e27ffe1147f4907567eda75df391670f004e3420bf010784e53a41c2




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