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I'm trying to generate MD5 of a string in my android code using kotlin..

val md5 = MessageDigest.getInstance("MD5")
val hash = md5.digest(queryToSign.toByteArray(Charset.defaultCharset())).toString()

But this gives me:

[B@118072

Any thoughts?

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2 Answers 2

Reset to default
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Solved it.. Use BigInteger

val md5 = MessageDigest.getInstance("MD5")
val hash = BigInteger(1, md5.digest(queryToSign.toByteArray(Charset.defaultCharset()))).toString(16)
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2 Comments

Otherwise using Hex converters (apache codex for example) will do the trick
For everyone: although it is a pretty-looking solution, BE AWARE all leading zeros will be TRIMMED. In case of calculating hash it is critical. So there must also be a code that checks the result's length and completes it with zeros if needed. For example, val correctedHash = "0".repeat(bytes.size * 2 - hash.length) + hash
0

byteArrayOf(80,87,68).decodeToString()

= PWD

click here to see how it works

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1 Comment

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