Secure Applications of Low-Entropy Keys

We introduce the notion of key stretching, a mechanism to convert short s-bit keys into longer keys, such that the complexity required to brute-force search a s + t-bit keyspace is the same as the time required to brute-force search a s-bit key stretched by t bits.

• Type: Conference
• Year: 1997
• Where: ISW
• Authors: John Kelsey, Bruce Schneier, Chris Hall, David Wagner
• Keywords: Brute-force Search, Information Management, ISW 1997, S-bit Key, Short S-bit Keys