RFC 3174: US Secure Hash Algorithm 1 (SHA1)

The purpose of this document is to make the SHA-1 (Secure Hash Algorithm 1) hash algorithm conveniently available to the Internet community. This memo…

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Outgoing relationships (3 related RFCs)

Informative reference — RFC 1321: The MD5 Message-Digest Algorithm
Informative reference — RFC 1750: Randomness Recommendations for Security
Informative reference — RFC 1320: The MD4 Message-Digest Algorithm

Incoming relationships (32 related RFCs)

Updated by — RFC 6234: US Secure Hash Algorithms (SHA and SHA-based HMAC and HKDF)
Updated by — RFC 4634: US Secure Hash Algorithms (SHA and HMAC-SHA)
Normatively referenced by — RFC 5880: Bidirectional Forwarding Detection (BFD)
Normatively referenced by — RFC 4193: Unique Local IPv6 Unicast Addresses
Normatively referenced by — RFC 5802: Salted Challenge Response Authentication Mechanism (SCRAM) SASL and GSS-API Mechanisms
Normatively referenced by — RFC 6621: Simplified Multicast Forwarding
Normatively referenced by — RFC 6940: REsource LOcation And Discovery (RELOAD) Base Protocol
Normatively referenced by — RFC 3871: Operational Security Requirements for Large Internet Service Provider (ISP) IP Network Infrastructure
Normatively referenced by — RFC 9054: CBOR Object Signing and Encryption (COSE): Hash Algorithms
Normatively referenced by — RFC 5547: A Session Description Protocol (SDP) Offer/Answer Mechanism to Enable File Transfer
Normatively referenced by — RFC 9530: Digest Fields
Normatively referenced by — RFC 4432: RSA Key Exchange for the Secure Shell (SSH) Transport Layer Protocol
Normatively referenced by — RFC 6109: La Posta Elettronica Certificata - Italian Certified Electronic Mail
Normatively referenced by — RFC 6287: OCRA: OATH Challenge-Response Algorithm
Normatively referenced by — RFC 6968: FCAST: Object Delivery for the Asynchronous Layered Coding (ALC) and NACK-Oriented Reliable Multicast (NORM) Protocols
Normatively referenced by — RFC 7374: Service Discovery Usage for REsource LOcation And Discovery (RELOAD)
Normatively referenced by — RFC 9905: Deprecating the Use of SHA-1 in DNSSEC Signature Algorithms
Informatively referenced by — RFC 4086: Randomness Requirements for Security
Informatively referenced by — RFC 5920: Security Framework for MPLS and GMPLS Networks
Informatively referenced by — RFC 3414: User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)
Informatively referenced by — RFC 4572: Connection-Oriented Media Transport over the Transport Layer Security (TLS) Protocol in the Session Description Protocol (SDP)
Informatively referenced by — RFC 5929: Channel Bindings for TLS
Informatively referenced by — RFC 4843: An IPv6 Prefix for Overlay Routable Cryptographic Hash Identifiers (ORCHID)
Informatively referenced by — RFC 4111: Security Framework for Provider-Provisioned Virtual Private Networks (PPVPNs)
Informatively referenced by — RFC 8945: Secret Key Transaction Authentication for DNS (TSIG)
Informatively referenced by — RFC 3887: Message Tracking Query Protocol
Informatively referenced by — RFC 5456: IAX: Inter-Asterisk eXchange Version 2
Informatively referenced by — RFC 7568: Deprecating Secure Sockets Layer Version 3.0
Informatively referenced by — RFC 6150: MD4 to Historic Status
Informatively referenced by — RFC 8315: Cancel-Locks in Netnews Articles
Informatively referenced by — RFC 9249: A YANG Data Model for NTP
Informatively referenced by — RFC 9919: The Lightweight Online Certificate Status Protocol (OCSP) Profile for High-Volume Environments