Glossary term · S
Cipher suite
Definition
A cipher suite is a named combination of cryptographic algorithms (key exchange, authentication, symmetric encryption, MAC/HMAC) negotiated between the client and server during the TLS handshake. TLS 1.3 enforces modern suites like
TLS_AES_256_GCM_SHA384, eliminating weak algorithms (RC4, 3DES, MD5). Certyneo only accepts TLS 1.3 cipher suites to maximize the security of signature sessions.Frequently asked questions
What is a cipher suite?
It is a named combination of cryptographic algorithms — key exchange, authentication, symmetric encryption, MAC/HMAC — negotiated between client and server during the TLS handshake.
When is a cipher suite negotiated?
During the TLS handshake, when the client and server establish a secure connection.
Does TLS 1.3 use the same cipher suites as earlier versions?
No — TLS 1.3 mandates modern suites such as TLS_AES_256_GCM_SHA384 and eliminates weak algorithms like RC4, 3DES, or MD5.
Which cipher suites does Certyneo accept?
Certyneo only accepts TLS 1.3 suites, to maximize the security of signing sessions.
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