Insecure Cipher Suite

IANA name:

TLS_ECDHE_PSK_WITH_RC4_128_SHA

GnuTLS name:

TLS_ECDHE_PSK_ARCFOUR_128_SHA1

Hex code:

0xC0, 0x33

TLS Version(s):

TLS1.0, TLS1.1, TLS1.2, TLS1.3

Protocol:

Transport Layer Security (TLS)

Key Exchange:

PFS Elliptic Curve Diffie-Hellman Ephemeral (ECDHE)

Authentication:

Pre-Shared Key (PSK)

Encryption:

Rivest Cipher 4 with 128bit key (RC4 128)

Rivest Cipher 4:

IETF has officially prohibited RC4 for use in TLS in RFC 7465. Therefore, it can be considered insecure.

Hash:

HMAC Secure Hash Algorithm 1 (SHA)

Secure Hash Algorithm 1:

The Secure Hash Algorithm 1 has been proven to be insecure as of 2017 (see shattered.io).

Included in RFC:

Machine-readable:

application/json