Last month, NIST hosted the Second Hash Workshop, primarily as a vehicle for discussing a replacement strategy for SHA-1.

NIST continues to recommend a transition from SHA-1 to the larger approved hash functions (SHA-224, SHA-256, SHA-384, and SHA-512). In response to the workshop, NIST has also decided that it would be prudent in the long-term to develop an additional hash function through a public competition, similar to the development process for the block cipher in the Advanced Encryption Standard (AES).

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