用维吉尼亚算法加密 /** * 维吉尼亚密码算法(BigDecimal)，加/解密处理后仍为BigDecimal类型，正负号和小数点不进行处理 * * @param str * 源BigDecimal * @param key * 密钥，应为数字字符组成的字符串 * @param mode * 模式（加密or解密） * @return 加/解密后的BigDecimal -Virginia algorithm using encryp

The affine cyper is a subtiutution morphoalphabetic cyper, wherein each letter in an alphabet is mapped to its numeric equivalent and then encrypted using a simple mathematical function

BSTR2, Bubble Sort2, Character to integer, CString s into char s. I am posting , Letter count with linked list, MasterString - over 3,000 lines of hardcore string manipluation (classes, structs, functions ) etc, string functions using both user