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You are here: NSS project page > Encryption Technologies Available in NSS 3.11

Encryption Technologies Available in NSS 3.11

Newsgroup: mozilla.dev.tech.crypto

Product Export Information

NSS is publicly available open source code implementing encryption for confidentiality with > 64-bit key sizes. We have previously notified the Bureau of Industry and Security (BIS) that we are exporting NSS under license exception TSU in accordance with section 740.13(e) of the EAR.

Encryption Technologies

Some technologies listed here are not currently implemented, but are planned for implementation in an upcoming release.

Key Agreement Reference
Key Agreement Reference Modulus/Key Strength End Use
RSA Key Agreement (using PKCS #1 v1.5) <= 8192-bit modulus Key agreement
Diffie-Hellman Key Agreement (using PKCS #3) <= 2236-bit modulus Key agreement
Elliptic Curve Diffie-Hellman (ECDH) Key Agreement (using IEEE 1363) over SECG and NIST named curves <= 571-bit for GF(2^m)
<= 521-bit for GF(p)
(ECC code not compiled by default)		 Key agreement
Digital Signature Reference
Digital Signature Reference Modulus/Key Strength End Use
RSA Signature (using PKCS #1 v1.5) <= 8192-bit modulus Digital signature
Digital Signature Algorithm (DSA) <= 1024-bit modulus Digital signature
Elliptic Curve Digital Signature Algorithm (ECDSA) (using ANSI X9.62) over SECG and NIST named curves <= 571-bit for GF(2^m)
<= 521-bit for GF(p)
(ECC code not compiled by default)		 Digital signature
Symmetric Encryption Reference
Symmetric Encryption Reference Key Strength End Use
Advanced Encryption Standard (AES) 128/192/256 Symmetric block cipher in ECB and CBC modes
Data Encryption Standard (DES) and Triple DES 56/112/168 Symmetric block cipher in ECB and CBC modes
RC4 Variable Symmetric stream cipher
RC2 Variable Symmetric block cipher in ECB and CBC modes
Cryptographic Hash Reference
Cryptographic Hash Reference Message Digest Size End Use
SHA-1/SHA-256/SHA-384/SHA-512 160/256/384/512 Message digest
MD5 128 Message digest
MD2 128 Message digest
SSL2 Algorithm Reference
SSL2 Algorithm Reference Key Strength End Use
SSL2-RC4-128-with-MD5 128 Bulk data encryption
SSL2-RC2-128-CBC-with-MD5 128 Bulk data encryption
SSL2-DES-168-EDE3-CBC-with-MD5 168 Bulk data encryption
SSL2-DES-56-CBC-with-MD5 56 Bulk data encryption
SSL2-RC4-128-EXPORT40-with-MD5 40 Bulk data encryption
SSL2-RC2-128-CBC-EXPORT40-with-MD5 40 Bulk data encryption
SSL3 Algorithm Reference
SSL3 Algorithm Reference Key Strength End Use
SSL3 Algorithm Reference Key Strength End Use
SSL3-FORTEZZA-DMS-with-FORTEZZA-CBC-SHA 80 Bulk data encryption
SSL3-FORTEZZA-DMS-with-RC4-128-SHA 128 Bulk data encryption
SSL3-RSA-with-RC4-128-MD5 128 Bulk data encryption
SSL3-RSA-with-3DES-EDE-CBC-SHA 168 Bulk data encryption
SSL3-RSA-with-DES-CBC-SHA 56 Bulk data encryption
SSL3-RSA-with-RC4-40-MD5 40 Bulk data encryption
SSL3-RSA-with-RC2-CBC-40-MD5 40 Bulk data encryption
SSL3-FORTEZZA-DMS-with-null-SHA 0 Bulk data encryption
SSL3-RSA-with-null-MD5 0 Bulk data encryption
SSL3-RSA-FIPS-with-3DES-EDE--CBC-SHA 168 Bulk data encryption
SSL3-RSA-FIPS-with-DES-CBC-SHA 56 Bulk data encryption
SSL3-DHE-RSA-with-3DES-EDE-CBC-SHA (client side only) 168 Bulk data encryption
SSL3-DHE-DSS-with-3DES-EDE-CBC-SHA (client side only) 168 Bulk data encryption
SSL3-DHE-RSA-with-DES-CBC-SHA (client side only) 56 Bulk data encryption
SSL3-DHE-DSS-with-DES-CBC-SHA (client side only) 56 Bulk data encryption
TLS Algorithm Reference
TLS Algorithm Reference Key Strength End Use
TLS Algorithm Reference Key Strength End Use
TLS-RSA-1024-with-RC4-56-SHA 56 Bulk data encryption
TLS-RSA-1024-with-DES-CBC-SHA 56 Bulk data encryption
TLS-RSA-with-RC4-128-MD5 128 Bulk data encryption
SSL_RSA_WITH_RC4_128_SHA or TLS_RSA_WITH_RC4_128_SHA 128 Bulk data encryption
TLS-RSA-with-3DES-EDE-CBC-SHA 168 Bulk data encryption
TLS-RSA-with-DES-CBC-SHA 56 Bulk data encryption
TLS-RSA-with-AES-256-CBC-SHA 256 Bulk data encryption
TLS-RSA-with-AES-128-CBC-SHA 128 Bulk data encryption
TLS-RSA-with-RC4-40-MD5 40 Bulk data encryption
TLS-RSA-with-RC2-CBC-40-MD5 40 Bulk data encryption
TLS-RSA-with-null-MD5 0 Bulk data encryption
TLS-DHE-RSA-with-AES-256-CBC-SHA (client side only) 256 Bulk data encryption
TLS-DHE-RSA-with-AES-128-CBC-SHA (client side only) 128 Bulk data encryption
TLS-DHE-DSS-with-AES-256-CBC-SHA (client side only) 256 Bulk data encryption
TLS-DHE-DSS-with-AES-128-CBC-SHA (client side only) 128 Bulk data encryption
TLS-DHE-DSS-with-RC4-128-SHA (client side only) 128 Bulk data encryption
TLS-ECDH-ECDSA-with-RC4-128-SHA 128 Bulk data encryption
TLS-ECDH-RSA-with-RC4-128-SHA 128 Bulk data encryption
TLS-ECDHE-ECDSA-with-RC4-128-SHA 128 Bulk data encryption
TLS-ECDHE-RSA-with-RC4-128-SHA 128 Bulk data encryption
TLS-ECDH-ECDSA-with-3DES-EDE-CBC-SHA 168 Bulk data encryption
TLS-ECDH-RSA-with-3DES-EDE-CBC-SHA 168 Bulk data encryption
TLS-ECDHE-ECDSA-with-3DES-EDE-CBC-SHA 168 Bulk data encryption
TLS-ECDHE-RSA-with-3DES-EDE-CBC-SHA 168 Bulk data encryption
TLS-ECDH-ECDSA-with-AES-128-CBC-SHA 128 Bulk data encryption
TLS-ECDH-RSA-with-AES-128-CBC-SHA 128 Bulk data encryption
TLS-ECDHE-ECDSA-with-AES-128-CBC-SHA 128 Bulk data encryption
TLS-ECDHE-RSA-with-AES-128-CBC-SHA 128 Bulk data encryption
TLS-ECDH-ECDSA-with-AES-256-CBC-SHA 256 Bulk data encryption
TLS-ECDH-RSA-with-AES-256-CBC-SHA 256 Bulk data encryption
TLS-ECDHE-ECDSA-with-AES-256-CBC-SHA 256 Bulk data encryption
TLS-ECDHE-RSA-with-AES-256-CBC-SHA 256 Bulk data encryption
S/MIME Algorithm Reference
S/MIME Algorithm Reference Key Strength End Use
S/MIME-DES-EDE3 168 Bulk data encryption
S/MIME-RC2-CBC-128 128 Bulk data encryption
S/MIME-DES-CBC 56 Bulk data encryption
S/MIME-RC2-CBC-64 64 Bulk data encryption
S/MIME-RC2-CBC-40 40 Bulk data encryption
PKCS #5 Algorithm Reference
PKCS #5 Algorithm Reference Key Strength End Use
PKCS5-RC2-40 40 Private key material encryption for internal storage
PKCS5-RC2-128 128 Private key material encryption for internal storage
PKCS5-RC4-128 128 Private key material encryption for internal storage
PKCS5-DES-56 56 Private key material encryption for internal storage
PKCS5-DES-EDE3 168 Private key material encryption for internal storage
PKCS #12 Algorithm Reference
PKCS #12 Algorithm Reference Key Strength End Use
PKCS12-RC2-40 40 Key portability/Backup
PKCS12-RC2-128 128 Key portability/Backup
PKCS12-RC4-56 56 Key portability/Backup
PKCS12-RC4-128 128 Key portability/Backup
PKCS12-DES-56 56 Key portability/Backup
PKCS12-DES-EDE3 168 Key portability/Backup
PKCS12-NULL 0 Key portability/Backup
Other Characteristics/Technologies
Other Characteristics/Technologies Modulus/Key Strength End Use
PKCS #1 v1.5 <= 8192-bit modulus Industry standard message formats for RSA key agreement and signatures.
PKCS #3 See Diffie-Hellman Key Agreement above Industry standard message formats for Diffie-Hellman key agreement.
PKCS #5/Wallet See PKCS #5 above Password-protected storage of wallet information in NSS database.
PKCS #7 See S/MIME above Signed or encrypted data produced by NSS conforms to this industry standard format.
PKCS #8 Used with PKCS #5 (see above) and PKCS #12 Industry standard format for storage of RSA private keys, used inside encrypted private key database.
PKCS #11, with restricted algorithms NSS uses this industry standard interface to work with smart cards and encryption accelerators.
PKCS #12 See PKCS #12 above Industry standard file format for storage of certificates and password-protected private keys.

Algorithm/Other Specifications can be found at the following locations