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This tutorial covers the basics of the science of cryptography. It explains how programmers and network professionals can use cryptography to maintain the privacy of computer data. Starting with the origins of cryptography, it moves on to explain cryptosystems, various traditional and modern ciphers, public key encryption, data integration, message authentication, and digital signatures.

Friday 10 April 2020

(SOLVED) MessageDigest.getInstance("SHA256") java.security.NoSuchAlgorithmException: SHA256

PROBLEM :
MessageDigest.getInstance("SHA256") java.security.NoSuchAlgorithmException: SHA256 MessageDigest not available

java.security.NoSuchAlgorithmException: SHA256 MessageDigest not available
 at sun.security.jca.GetInstance.getInstance(GetInstance.java:159)
 at java.security.Security.getImpl(Security.java:730)
 at java.security.MessageDigest.getInstance(MessageDigest.java:167)

SOLVED : 

 Rename MessageDigest.getInstance("SHA256")  with MessageDigest.getInstance("SHA-256")
Posted by Admin S at
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