Popular Post kurosaki ichigo Rare Rare Posted March 20, 2021 Popular Post Share Founder Posted March 20, 2021 BLOCK:ConstantString value = "wJalrXUtnFEMI/K7MDENG+bPxRfiCYEXAMPLEKEY" => VAR @KEY ENDBLOCK BLOCK:ConstantString value = "20120215" => VAR @DATE ENDBLOCK BLOCK:ConstantString value = "us-east-1" => VAR @REGION ENDBLOCK BLOCK:ConstantString value = "iam" => VAR @SERVICE ENDBLOCK BLOCK:ConstantString value = "aws4_request" => VAR @REQ ENDBLOCK BLOCK:UTF8ToBase64 input = $"AWS4<KEY>" => VAR @KSECRET_B64 ENDBLOCK BLOCK:Base64StringToByteArray base64String = @KSECRET_B64 => VAR @CON ENDBLOCK BLOCK:ByteArrayToHexString bytes = @CON => VAR @KSECRET_HEX ENDBLOCK BLOCK:Hmac input = @DATE key = @CON hashFunction = SHA256 => VAR @DATEMAC ENDBLOCK BLOCK:ByteArrayToBase64String bytes = @DATEMAC => VAR @KDATE_B64 ENDBLOCK BLOCK:Base64StringToByteArray base64String = @KDATE_B64 => VAR @CON1 ENDBLOCK BLOCK:ByteArrayToHexString bytes = @CON1 => VAR @KDATE_HEX ENDBLOCK BLOCK:Hmac input = @REGION key = @CON1 hashFunction = SHA256 => VAR @REGIONMAC ENDBLOCK BLOCK:ByteArrayToBase64String bytes = @REGIONMAC => VAR @KREGION_B64 ENDBLOCK BLOCK:Base64StringToByteArray base64String = @KREGION_B64 => VAR @CON2 ENDBLOCK BLOCK:ByteArrayToHexString bytes = @CON2 => VAR @KREGION_HEX ENDBLOCK BLOCK:Hmac input = @SERVICE key = @CON2 hashFunction = SHA256 => VAR @SERVICEMAC ENDBLOCK BLOCK:ByteArrayToBase64String bytes = @SERVICEMAC => VAR @KSERVICE_B64 ENDBLOCK BLOCK:Base64StringToByteArray base64String = @KSERVICE_B64 => VAR @CON3 ENDBLOCK BLOCK:ByteArrayToHexString bytes = @CON3 => VAR @KSERVICE_HEX ENDBLOCK BLOCK:Hmac input = @REQ key = @CON3 hashFunction = SHA256 => VAR @SIGNINGMAC ENDBLOCK BLOCK:ByteArrayToBase64String bytes = @SIGNINGMAC => VAR @KSIGNING_B64 ENDBLOCK BLOCK:Base64StringToByteArray base64String = @KSIGNING_B64 => VAR @CON4 ENDBLOCK BLOCK:ByteArrayToHexString bytes = @CON4 => VAR @SIGNATURE ENDBLOCK Of course you will have to change the 5 variables declared at the beginning of the script according to your specific case. Note: The BASE64 to HEX conversions aren’t actually useful for getting the signature (except for the last one) so you can skip them, they are just there to make sure every step matches with the ones given on the AWS example documentation. Have a good one. Original Post by @Ruri Conversion to OB2 by @Fairy https://discourse.openbullet.dev/t/how-to-generate-an-aws4-signature-ob2/530 4 5 Trophies and Medals Link to comment Share on other sites More sharing options...
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