Hi all,

I'm trying to get a POST command to work on BTC-e, but keep getting an "invalid sign" response. My GET on the public API works like a charm. So I'm wondering if my SHA512 calculation is messed up (working in VBA/Excel) or if I'm doing something else wrong? My main question would be: with APIKey "MyApiKey", SecretKey "MySecretKey" and postdata being "method=getInfo&nonce=1390391080", is my Sign correct?

For test purposes:
APIkey = "MyApiKey" (yes, this should be something else)
SecretKey = "MySecretKey" (this too)
TradeApiSite = "https://btc-e.com/tapi"
postData= "method=getInfo&nonce=1390391080"

And the resulting calculated Sign:
Sign (SHA512): 6DmHCo3HxkiSZSC577vx7pycF2bKvRHP4JATBxpxiGAyqVSFFeUuKlteJ6l2GyZ0XwJfffU/nZnJmWAtPrmvHA==

And the bit of code I use:

And the result:
{"success":0,"error":"invalid sign"}

Thanks for any pointers,

Koen