英和和英

出典:『Wikipedia』 (2011/06/05 23:52 UTC 版)

英語による解説

引用

In cryptography, key stretching refers to techniques used to make a possibly weak key, typically a password or passphrase, more secure against a brute force attack by increasing the time it takes to test each possible key. Passwords or passphrases created by humans are often short or predictable enough to allow password cracking. Key stretching makes such attacks more difficult.