1. [JA3 Fingerprint](https://scrapfly.io/web-scraping-tools/ja3-fingerprint)
2. [ Supported Groups ](https://scrapfly.io/web-scraping-tools/ja3-fingerprint/supported-groups "Browse all TLS Supported Groups")
3. x25519mlkem768
 
   [  Browse All Supported Groups ](https://scrapfly.io/web-scraping-tools/ja3-fingerprint/supported-groups) 

 # x25519mlkem768

Hybrid PQ | Security: Quantum-resistant (~192 bits classical) | Code: `4588`

 

### Group Details



Group Name

`x25519mlkem768`

 

Group Code (Decimal)

`4588`

 

Group Code (Hex)

`0x11EC`

 

Type

Hybrid PQ

 

Security Level

Quantum-resistant (~192 bits classical)

 

 

 

### What is x25519mlkem768?



X25519MLKEM768 is a post-quantum hybrid key exchange that combines the classical X25519 elliptic curve with ML-KEM-768 (formerly known as Kyber-768). This hybrid approach provides quantum-resistant security while maintaining backward compatibility with classical cryptography. The combination ensures security even if either algorithm is broken: if quantum computers break X25519, ML-KEM-768 provides protection; if ML-KEM-768 has weaknesses, X25519 maintains security. ML-KEM (Module-Lattice-based Key Encapsulation Mechanism) was standardized by NIST in 2024 as part of the post-quantum cryptography initiative. Chrome and other browsers have begun experimental support for hybrid PQ key exchange. This is considered the most practical transition path to quantum-resistant TLS.



 

### Role in JA3 Fingerprinting



The **x25519mlkem768** group is used for ECDHE key exchange in TLS, providing perfect forward secrecy. Different browsers and HTTP clients advertise different supported groups, making this a key component of JA3 fingerprints.

**Fingerprinting Impact:** The order and selection of supported groups reveals browser type, version, and security preferences.

 

 

 

### Test Your Configuration



 [  Check Your JA3 Fingerprint ](https://scrapfly.io/web-scraping-tools/ja3-fingerprint) 

 

### Technical References



- [NIST FIPS 203 (ML-KEM) ](https://csrc.nist.gov/pubs/fips/203/final)
- [IANA TLS Supported Groups Registry ](https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-8)