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Safe Stamper Web API parameters signature - Revision history
2026-05-11T22:20:21Z
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w>Jguillo: Created page with 'Some API operations require a signature to authenticate the API client. To calculate the signature, follow this steps: * Build a string with all parameters ordered alphabetical…'
2016-04-15T13:57:04Z
<p>Created page with 'Some API operations require a signature to authenticate the API client. To calculate the signature, follow this steps: * Build a string with all parameters ordered alphabetical…'</p>
<p><b>New page</b></p><div>Some API operations require a signature to authenticate the API client.<br />
<br />
To calculate the signature, follow this steps:<br />
<br />
* Build a string with all parameters ordered alphabetically, separated by ''&'' and '''without url-encoding'''<br />
* Get the bytes of the string, using UTF-8 encoding<br />
* Get the bytes of your private key, using UTF-8 encoding<br />
* Calculate the HMAC-SHA1 of the string bytes, with your private key bytes<br />
* Encode the signature bytes as hexadecimal digit pairs<br />
<br />
== Example ==<br />
<br />
'''Parameters:'''<br />
* url = <nowiki>https://www.google.com/search?q=Safe+Stamper&gws_rd=cr,ssl</nowiki><br />
* sharedkey = 789lq9o6im682tl0m1rej34ls<br />
<br />
'''Private key: '''<br />
* 1omnpo704w6u2ad2lxo2wrdm5<br />
<br />
<br />
'''String to sign: '''<br />
<pre><br />
sharedkey=789lq9o6im682tl0m1rej34ls&url=https://www.google.com/search?q=Safe+Stamper&gws_rd=cr,ssl<br />
</pre><br />
<br />
<br />
'''Content bytes''' (hexadeximal): <br />
<pre><br />
73 68 61 72 65 64 6b 65 79 3d 37 38 39 6c 71 39 |sharedkey=789lq9|<br />
6f 36 69 6d 36 38 32 74 6c 30 6d 31 72 65 6a 33 |o6im682tl0m1rej3|<br />
34 6c 73 26 75 72 6c 3d 68 74 74 70 73 3a 2f 2f |4ls&url=https://|<br />
77 77 77 2e 67 6f 6f 67 6c 65 2e 63 6f 6d 2f 73 |www.google.com/s|<br />
65 61 72 63 68 3f 71 3d 53 61 66 65 2b 53 74 61 |earch?q=Safe+Sta|<br />
6d 70 65 72 26 67 77 73 5f 72 64 3d 63 72 2c 73 |mper&gws_rd=cr,s|<br />
73 6c |sl|<br />
</pre><br />
<br />
<br />
'''Key bytes''' (hexadecimal)<br />
<pre><br />
31 6f 6d 6e 70 6f 37 30 34 77 36 75 32 61 64 32 |1omnpo704w6u2ad2|<br />
6c 78 6f 32 77 72 64 6d 35 0a |lxo2wrdm5.|<br />
</pre><br />
<br />
<br />
'''HMAC-SHA1'''<br />
<pre><br />
3e e8 b6 11 39 50 c0 c8 49 4b a0 3b 4f b8 d6 16 c7 fb 9a 25<br />
</pre><br />
<br />
<br />
'''Signature string:'''<br />
<pre><br />
3ee8b6113950c0c8494ba03b4fb8d616c7fb9a25<br />
</pre></div>
w>Jguillo