Deprecating MD5 and SHA-1 signature hashes in TLS 1.2
Loganaden Velvindron, Kathleen Moriarty · 2019
The MD5 and SHA-1 hashing algorithms are steadily weakening in strength and their deprecation process should begin for their use in TLS 1.2 digital signatures. However, this document does not deprecate SHA-1 in HMAC for record protection.