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Update compute-transhash-sha512.rb #68

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Update compute-transhash-sha512.rb #68

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3 changes: 2 additions & 1 deletion Sha512/compute-transhash-sha512.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -21,8 +21,9 @@ def calculate_TransHashSha512(signatureKey,textToHash)
if(!textToHash || textToHash.length == 0)
raise 'textToHash cannot be null or empty';
end
if(signatureKey.length>2 || signatureKey.length%2!=0)
if(signatureKey.length<2 || signatureKey.length%2!=0)
raise 'Signature Key cannot be less than 2 or odd';
end
digest = OpenSSL::Digest.new('sha512')
return OpenSSL::HMAC.hexdigest(digest, [signatureKey].pack('H*'), textToHash).upcase
end
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