我不想计算文件的校验和,只是为了知道给定的字符串是否是有效的校验和
RegExp SHA-1
public static final String SHA_1 = "^([0-9A-Fa-f]{2}[:]){19}([0-9A-Fa-f]{2})$";
public boolean isValidSHA1(String s) {
return s.matches(SHA_1);
}
boolean isValidSHA1 = isValidSHA1("12:45:54:3A:99:24:52:EA...");