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Last encoded character (before the paddings if any) is a valid base 64 alphabet but not a possible value. Expected the discarded bits to be zero. 异常 #1454
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老版本没有问题, /**
* Validates whether decoding the final trailing character is possible in the context
* of the set of possible base 64 values.
*
* <p>The character is valid if the lower bits within the provided mask are zero. This
* is used to test the final trailing base-64 digit is zero in the bits that will be discarded.
*
* @param emptyBitsMask The mask of the lower bits that should be empty
* @param context the context to be used
*
* @throws IllegalArgumentException if the bits being checked contain any non-zero value
*/
private static void validateCharacter(final int emptyBitsMask, final Context context) {
if ((context.ibitWorkArea & emptyBitsMask) != 0) {
throw new IllegalArgumentException(
"Last encoded character (before the paddings if any) is a valid base 64 alphabet but not a possible value. " +
"Expected the discarded bits to be zero.");
}
} |
已更新文档! |
感谢 |
Closed
最新版已经去掉对commons-codec的依赖,欢迎使用新版本 |
新版本在哪啊 |
看首页版本号,maven仓库里的 |
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简要描述
升级
commons-codec
至 1.13 版本后,加解密时出现java.lang.IllegalArgumentException: Last encoded character (before the paddings if any) is a valid base 64 alphabet but not a possible value. Expected the discarded bits to be zero.
异常问题原因
commons-codec
在 1.13 版本引入了 validateCharacter 方法,来验证在上下文中是否可以解码最后的尾随字符,微信生成的EncodingAESKey
无法通过校验解决方法
使用
commons-codec
加密 32 位字符(我是用的 UUID 生成 ID 后去除-
) 生成一个EncodingAESKey
替换微信生成的EncodingAESKey
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