API签名算法易SDK

kSecret ＝ Access_Key_Secret
kDate ＝ QY_加密_rstr_hmac_sha256 (到字节集 (“JDCLOUD2” ＋ kSecret), 到字节集 (Date))
kRegion ＝ QY_加密_rstr_hmac_sha256 (kDate, 到字节集 (Region))
kService ＝ QY_加密_rstr_hmac_sha256 (kRegion, 到字节集 (Service))
kSigning ＝ QY_加密_rstr_hmac_sha256 (kService, 到字节集 (“jdcloud2_request”))
signResult ＝ QY_加密_rstr2hex (QY_加密_rstr_hmac_sha256 (kSigning, 到字节集 (待签字符串)))
Authorization ＝ “JDCLOUD2-HMAC-SHA256 Credential=” ＋ Access_Key_ID ＋ “/” ＋ Date ＋ “/” ＋ Region ＋ “/” ＋ Service ＋ “/jdcloud2_request, SignedHeaders=” ＋ SignedHeaders ＋ “, Signature=” ＋ signResult
Jdcloud_Head ＝ 京东云_get_head (Jdcloud_Host, Jdcloud_Date, Jdcloud_Nonce, Authorization)