9. Security Considerations

This document is intended to provide convenient open source access by the Internet community to the United States of America Federal Information Processing Standard Secure Hash Algorithms (SHAs) [FIPS 180-2], HMACs based thereon, and HKDF. No independent assertion of the security of these functions by the authors for any particular use is intended.

See [RFC6194] for a discussion of SHA-1 Security Considerations.

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