95WnM2Sd

1  signature_text = """host: #{host}
2date: #{date}
3(request-target): post #{@api_version + @payment_endpoint}
4digest: #{"SHA-256=" + digest_64}
5v-c-merchant-id: #{mymerchantid}"""
6
7  secret_key = "ryDW4H+AQkLOb9PXutdX5ZJ1MObgeXV/RCoMWVhvvsU="
8
9  decoded_secret_key = Base64.decode64(secret_key)
10
11  signature_plain = OpenSSL::HMAC.digest(OpenSSL::Digest.new('sha256'), decoded_secret_key, signature_text)
12
13  signature = Base64.encode64(signature_plain)
14
15  sig = 'keyid="#{key}", algorithm="HmacSHA256", headers="host date (request-target) v-c-merchant-id", signature="#{signature}"'
16
17  headers = { 
18    "v-c-merchant-id"  => "",
19    "date"  => "", #The date in RFC1123 format: Thu, 18 Jul 2019 00:18:03 GMT
20    "Host" => host,
21    "Digest" => "SHA-256=" + digest_64,
22    "Signature" => sig,
23    "Content-Type" => "application/json",
24  }