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Cipher Suite
F
Summary Components Key Exchange Method
A+
Authentication Method
A+
Encryption Type
F
Message Authentication Code
A-
F

Cipher Suite: TLS_­ECDHE_­RSA_­WITH_­NULL_­SHA

Summary

Name:
TLS_ECDHE_RSA_WITH_NULL_SHA
IANA Name:
TLS_ECDHE_RSA_WITH_NULL_SHA
Code:
(0xc0, 0x10)
OpenSSL Name:
ECDHE-RSA-NULL-SHA
Protocol Versions:
SSL 3.0,TLS 1.0

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Components

A+
Key Exchange Method
Name
Elliptic-curve Diffie–Hellman Ephemeral (ECDHE)
Security
Ephemeral Elliptic-curve Diffie–Hellman[91][92] is a variant of Elliptic-curve Diffie–Hellman[490][491] key exchange that has forward secrecy[135][136][137][138], and does protect past sessions against future compromises. If long-term secret keys or passwords are compromised, encrypted communications and sessions recorded in the past cannot be retrieved and decrypted.
Recommendations
Always prefer cipher suites with PFS property over the non-PFS ones. Note that performance considerations implies preferring Ephemeral Elliptic-curve Diffie–Hellman[91][92] over Ephemeral Diffie-Hellman[142][143][144][145].
A+
Authentication Method
Name
Rivest–Shamir–Adleman (RSA)
Security
Rivest–Shamir–Adleman[80][81][82] is a digital signature[231][232][233][234] algorithm, which is considered secure, however there are known weaknesses[322][323][324][325][326].
Recommendations
F
Encryption Type
Name
NULL
Security
Encryption algorithm is a null encryption[568][569] that cannot provide confidentiality[198][199][200], so connection is available or disclosed to unauthorized individuals, entities, or processes.
Recommendations
Remove the cipher suite from the list of cipher suites supported by your server.
A-
Message Authentication Code
Name
SHA-1
Security
message authentication code[128][129][130][131] is a hashed message authentication code[418][419][420][421][422][423][424] which is considered secure[159], despite the fact that the underlayingcryptographic hash function[510][511][512][513] (Secure Hash Algorithm 1[204][205][206]) is considered insecure[370][371][372][373][374][375][376].
Recommendations
If your application or requirements specifically call for the use of a message authentication code[128][129][130][131] that does not provide authenticated encryption[563] prefer block cipher mode of operation[293][294][295][296][297] (eg: counter with CBC-MAC[266][267][268], Galois/Counter Mode[65][66][67][68] or message authentication code[128][129][130][131] (eg: Poly1305[289][290]) that proved authenticated encryption over the ones which does not provide it. In case of a hashed message authentication code[418][419][420][421][422][423][424] prefer message authentication code[128][129][130][131] based on Secure Hash Algorithm 2[71][72][73] over the ones based on Secure Hash Algorithm 1[204][205][206].