TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
TLS 1.2 | 128-bit + Forward Secrecy Recommended
Cipher Suite Details
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA2560xC02B49195What is TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256?
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 uses ECDSA (Elliptic Curve Digital Signature Algorithm) instead of RSA for server authentication, providing smaller certificates and faster signature verification. ECDSA certificates are becoming increasingly popular as they offer equivalent security with 256-bit keys compared to 2048-bit RSA keys. This results in smaller certificate chains, reducing handshake time and bandwidth. ECDHE provides perfect forward secrecy, and AES-128-GCM provides authenticated encryption. This cipher suite is the modern choice for new deployments, though RSA certificates remain more common due to legacy compatibility.
Role in JA3 Fingerprinting
The TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 cipher suite is part of the TLS Client Hello that JA3 analyzes. Cipher suite order and selection are key indicators of browser type and version.
JA3 Format: TLS_VERSION,CIPHERS,EXTENSIONS,CURVES,POINT_FORMATS
Different browsers prioritize different cipher suites (Chrome prefers ChaCha20 on mobile, Firefox prioritizes AES-GCM, etc.), making cipher suite ordering a reliable fingerprint.
Test Your Cipher Suites
See which cipher suites your browser advertises, including TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256.