TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
TLS 1.2 | 256-bit + Forward Secrecy Recommended
Cipher Suite Details
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA2560xCCA852392What is TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256?
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 brings ChaCha20-Poly1305 to TLS 1.2, providing excellent performance on mobile devices without AES hardware acceleration. This cipher suite combines ECDHE for forward secrecy, RSA authentication, and ChaCha20-Poly1305 for encryption. Google introduced this cipher suite in 2013 (RFC 7905) to improve mobile browsing performance on ARM-based Android devices. Chrome and Android browsers prefer this cipher on mobile platforms. It is also resistant to timing attacks that affect some AES-GCM implementations. This cipher suite is widely supported and recommended for mobile-first websites.
Role in JA3 Fingerprinting
The TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_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_RSA_WITH_CHACHA20_POLY1305_SHA256.