Hello team,

I am unable to  generate valid signature from sales force using OAuth 1.0.

I followed all instructions as mentioned in NetSuite. My Signature algorithm is HMAC-SHA256.

Please help.

below lines of code in Salesforce..

Blob sig = Crypto.generateMac('hmacSHA256', Blob.valueOf(baseString), Blob.valueOf(signingkey));

String signature = EncodingUtil.urlEncode(EncodingUtil.base64encode(sig), 'UTF-8');

system.debug('sig'+ sig);

System.debug('Signature: '+signature);

Http http = new Http();

HttpRequest request = new HttpRequest();

String AuthString = 'OAuth realm="xxxxx",oauth_consumer_key="xxxxxxxxxxx475a19359ab93bf7f4f9397ee0f88de66c8408e7f",oauth_token="b8410d1e3f16268240a7627f26b60b54c8e089109xxxxxxxxxx",oauth_signature_method="HMAC-SHA256",oauth_timestamp="'+tnow+'",oauth_nonce="'+nonce+'",oauth_version="1.0",oauth_signature="'+signature+'"';