Help Center

Local Navigation

BlackBerry Manuals & Help  >  Administrator Documentation  >  BlackBerry Enterprise Server 5 Security  >  Security Technical Overview BlackBerry Enterprise Server - 5.0.2

Limitations of RIM Cryptographic API support for cipher suites for the key establishment algorithm

The RIM® Cryptographic API implementation of the TLS protocol and WTLS protocol supports the use of the RSA® public key algorithm, DSA public key algorithm, and Diffie-Hellman key exchange algorithm, with the following limitations.

Cipher suite type

Typical component limitation

export
  • RSA and Diffie-Hellman: 1024 bytes or less
  • elliptic curve: 163 bytes or less

non-export

  • non elliptic curve operations: 4096 bytes
  • elliptic curve operations: 571 bytes

Limitations to non-export cipher suite types are due to the computational constraints of a BlackBerry® device.

Next topic: Related resources
Previous topic: Hash algorithms that the RIM Cryptographic API supports

Was this information helpful? Send us your comments.