Aug 18, 2017 · Master secret computation by using FIPS 140-1 cipher suites The procedures for using the FIPS 140-1 cipher suites in SSL 3.0 differ from the procedures for using the FIPS 140-1 cipher suites in TLS 1.0. In SSL 3.0, the following is the definition master_secret computation: In TLS 1.0, the following is the definition master_secret computation
4.13. Hardening TLS Configuration Red Hat Enterprise Linux TLS (Transport Layer Security) is a cryptographic protocol used to secure network communications. Modern, more secure cipher suites should be preferred to old, insecure ones. Always disable the use of eNULL and aNULL cipher suites, which do not offer any encryption or authentication at all. Restrict TLS protocols and cipher suites—ArcGIS Server Cipher suites reference As an ArcGIS Server administrator, you can specify which Transport Layer Security (TLS) protocols and encryption algorithms ArcGIS Server uses to secure communication. Your organization may be required to use specific TLS protocols and encryption algorithms, or the web server on which you deploy ArcGIS Server may only Hardening: SSL/TLS Protocols and Cipher Suites - CastleLock Jan 02, 2020
Abusing go:linkname to customize TLS 1.3 cipher suites
Cipher suites can only be negotiated for TLS versions which support them. The highest supported TLS version is always preferred in the TLS handshake. For example, SSL_CK_RC4_128_WITH_MD5 can only be used when both the client and server do not support TLS 1.2, 1.1 & 1.0 or SSL 3.0 since it is only supported with SSL 2.0.
Vulnerabilities in SSL RC4 Cipher Suites is a Medium risk vulnerability that is one of the most frequently found on networks around the world. This issue has been around since at least 1990 but has proven either difficult to detect, difficult to resolve or prone to being overlooked entirely.
Cipher suites reference As an ArcGIS Server administrator, you can specify which Transport Layer Security (TLS) protocols and encryption algorithms ArcGIS Server uses to secure communication. Your organization may be required to use specific TLS protocols and encryption algorithms, or the web server on which you deploy ArcGIS Server may only Hardening: SSL/TLS Protocols and Cipher Suites - CastleLock Jan 02, 2020