[英]pbkdf2 returns a hash with 128 characters instead of 64
I want to create password hashes when creating users and store them to my database. 我想在创建用户时创建密码哈希并将其存储到我的数据库中。 My database password column stores hashes of 64 chars (
nvarchar(64)
). 我的数据库密码列存储的哈希值为64个字符(
nvarchar(64)
)。 My hash configuration: 我的哈希配置:
const byteAmount: number = Number(process.env.BYTE_AMOUNT) || 16;
const iterations: number = Number(process.env.ITERATIONS) || 100;
const length: number = Number(process.env.LENGTH) || 64;
const algorithm: string = process.env.ALGORITHM || 'sha512';
const conversion: string = process.env.CONVERSION || 'Hex';
When hashing the users plain text password I use this function 当哈希用户纯文本密码时,我使用此功能
public hashPassword = (password: BinaryLike, passwordSalt: BinaryLike): string => {
const { iterations, length, algorithm }: { iterations: number, length: number, algorithm: string } = passwordConfig;
const passwordHash: string = pbkdf2Sync(password, passwordSalt, iterations, length, algorithm).toString(passwordConfig.conversion);
return passwordHash;
}
Unfortunately the hash function returns a password hash with 128 characters. 不幸的是,哈希函数返回具有128个字符的密码哈希。 Is it possible to define a hash length or do I always get returned a 128 characters long hash?
是否可以定义哈希长度,还是总是返回128个字符长的哈希?
Parameter keylen
( length
in your snippet) specifies number of bytes in the returned buffer. 参数
keylen
(代码段中的length
)指定返回缓冲区中的字节数。 Converting this buffer to a hex
string doubles the returned string, because each byte is represented by two characters. 将此缓冲区转换为
hex
字符串会使返回的字符串加倍,因为每个字节都由两个字符表示。
If you want to get a hex
string of 64 chars, then you must set length = 32
. 如果要获取64个字符的
hex
字符串,则必须设置length = 32
。
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