( ! ) Warning: Declaration of Jetpack_IXR_Client::query() should be compatible with IXR_Client::query(...$args) in C:\wamp64_2\www\docbase\wp-content\plugins\jetpack\class.jetpack-ixr-client.php on line 0
Call Stack
#	Time	Memory	Function	Location
1	0.0001	402616	{main}( )	...\index.php:0
2	0.0002	402896	require( 'C:\wamp64_2\www\docbase\wp-blog-header.php' )	...\index.php:17
3	0.3234	9209280	wp( )	...\wp-blog-header.php:16
4	0.3234	9209304	WP->main( )	...\functions.php:1334
5	0.3234	9209304	WP->parse_request( )	...\class-wp.php:780
6	0.3241	9235984	do_action_ref_array( )	...\class-wp.php:399
7	0.3241	9235984	WP_Hook->do_action( )	...\plugin.php:565
8	0.3241	9235984	WP_Hook->apply_filters( )	...\class-wp-hook.php:332
9	0.3242	9237000	rest_api_loaded( )	...\class-wp-hook.php:308
10	0.3242	9237032	rest_get_server( )	...\rest-api.php:403
11	0.3242	9239968	do_action( )	...\rest-api.php:577
12	0.3242	9240344	WP_Hook->do_action( )	...\plugin.php:517
13	0.3242	9240344	WP_Hook->apply_filters( )	...\class-wp-hook.php:332
14	0.3254	9279544	Jetpack_Core_Json_Api_Endpoints::register_endpoints( )	...\class-wp-hook.php:308
15	0.3257	9287536	Jetpack::load_xml_rpc_client( )	...\class.core-rest-api-endpoints.php:64

( ! ) Warning: Cannot modify header information - headers already sent by (output started at C:\wamp64_2\www\docbase\wp-content\plugins\jetpack\class.jetpack-ixr-client.php:0) in C:\wamp64_2\www\docbase\wp-includes\rest-api\class-wp-rest-server.php on line 1768
Call Stack
#	Time	Memory	Function	Location
1	0.0001	402616	{main}( )	...\index.php:0
2	0.0002	402896	require( 'C:\wamp64_2\www\docbase\wp-blog-header.php' )	...\index.php:17
3	0.3234	9209280	wp( )	...\wp-blog-header.php:16
4	0.3234	9209304	WP->main( )	...\functions.php:1334
5	0.3234	9209304	WP->parse_request( )	...\class-wp.php:780
6	0.3241	9235984	do_action_ref_array( )	...\class-wp.php:399
7	0.3241	9235984	WP_Hook->do_action( )	...\plugin.php:565
8	0.3241	9235984	WP_Hook->apply_filters( )	...\class-wp-hook.php:332
9	0.3242	9237000	rest_api_loaded( )	...\class-wp-hook.php:308
10	0.4045	11027872	WP_REST_Server->serve_request( )	...\rest-api.php:410
11	0.4047	11027528	WP_REST_Server->send_header( )	...\class-wp-rest-server.php:310
12	0.4047	11027856	header ( )	...\class-wp-rest-server.php:1768

( ! ) Warning: Cannot modify header information - headers already sent by (output started at C:\wamp64_2\www\docbase\wp-content\plugins\jetpack\class.jetpack-ixr-client.php:0) in C:\wamp64_2\www\docbase\wp-includes\rest-api\class-wp-rest-server.php on line 1768
Call Stack
#	Time	Memory	Function	Location
1	0.0001	402616	{main}( )	...\index.php:0
2	0.0002	402896	require( 'C:\wamp64_2\www\docbase\wp-blog-header.php' )	...\index.php:17
3	0.3234	9209280	wp( )	...\wp-blog-header.php:16
4	0.3234	9209304	WP->main( )	...\functions.php:1334
5	0.3234	9209304	WP->parse_request( )	...\class-wp.php:780
6	0.3241	9235984	do_action_ref_array( )	...\class-wp.php:399
7	0.3241	9235984	WP_Hook->do_action( )	...\plugin.php:565
8	0.3241	9235984	WP_Hook->apply_filters( )	...\class-wp-hook.php:332
9	0.3242	9237000	rest_api_loaded( )	...\class-wp-hook.php:308
10	0.4045	11027872	WP_REST_Server->serve_request( )	...\rest-api.php:410
11	0.4063	11027472	WP_REST_Server->send_header( )	...\class-wp-rest-server.php:311
12	0.4063	11027792	header ( )	...\class-wp-rest-server.php:1768

( ! ) Warning: Cannot modify header information - headers already sent by (output started at C:\wamp64_2\www\docbase\wp-content\plugins\jetpack\class.jetpack-ixr-client.php:0) in C:\wamp64_2\www\docbase\wp-includes\rest-api\class-wp-rest-server.php on line 1768
Call Stack
#	Time	Memory	Function	Location
1	0.0001	402616	{main}( )	...\index.php:0
2	0.0002	402896	require( 'C:\wamp64_2\www\docbase\wp-blog-header.php' )	...\index.php:17
3	0.3234	9209280	wp( )	...\wp-blog-header.php:16
4	0.3234	9209304	WP->main( )	...\functions.php:1334
5	0.3234	9209304	WP->parse_request( )	...\class-wp.php:780
6	0.3241	9235984	do_action_ref_array( )	...\class-wp.php:399
7	0.3241	9235984	WP_Hook->do_action( )	...\plugin.php:565
8	0.3241	9235984	WP_Hook->apply_filters( )	...\class-wp-hook.php:332
9	0.3242	9237000	rest_api_loaded( )	...\class-wp-hook.php:308
10	0.4045	11027872	WP_REST_Server->serve_request( )	...\rest-api.php:410
11	0.4082	11027664	WP_REST_Server->send_header( )	...\class-wp-rest-server.php:315
12	0.4082	11028032	header ( )	...\class-wp-rest-server.php:1768

( ! ) Warning: Cannot modify header information - headers already sent by (output started at C:\wamp64_2\www\docbase\wp-content\plugins\jetpack\class.jetpack-ixr-client.php:0) in C:\wamp64_2\www\docbase\wp-includes\rest-api\class-wp-rest-server.php on line 1768
Call Stack
#	Time	Memory	Function	Location
1	0.0001	402616	{main}( )	...\index.php:0
2	0.0002	402896	require( 'C:\wamp64_2\www\docbase\wp-blog-header.php' )	...\index.php:17
3	0.3234	9209280	wp( )	...\wp-blog-header.php:16
4	0.3234	9209304	WP->main( )	...\functions.php:1334
5	0.3234	9209304	WP->parse_request( )	...\class-wp.php:780
6	0.3241	9235984	do_action_ref_array( )	...\class-wp.php:399
7	0.3241	9235984	WP_Hook->do_action( )	...\plugin.php:565
8	0.3241	9235984	WP_Hook->apply_filters( )	...\class-wp-hook.php:332
9	0.3242	9237000	rest_api_loaded( )	...\class-wp-hook.php:308
10	0.4045	11027872	WP_REST_Server->serve_request( )	...\rest-api.php:410
11	0.4096	11027552	WP_REST_Server->send_header( )	...\class-wp-rest-server.php:323
12	0.4096	11027872	header ( )	...\class-wp-rest-server.php:1768

( ! ) Warning: Cannot modify header information - headers already sent by (output started at C:\wamp64_2\www\docbase\wp-content\plugins\jetpack\class.jetpack-ixr-client.php:0) in C:\wamp64_2\www\docbase\wp-includes\rest-api\class-wp-rest-server.php on line 1768
Call Stack
#	Time	Memory	Function	Location
1	0.0001	402616	{main}( )	...\index.php:0
2	0.0002	402896	require( 'C:\wamp64_2\www\docbase\wp-blog-header.php' )	...\index.php:17
3	0.3234	9209280	wp( )	...\wp-blog-header.php:16
4	0.3234	9209304	WP->main( )	...\functions.php:1334
5	0.3234	9209304	WP->parse_request( )	...\class-wp.php:780
6	0.3241	9235984	do_action_ref_array( )	...\class-wp.php:399
7	0.3241	9235984	WP_Hook->do_action( )	...\plugin.php:565
8	0.3241	9235984	WP_Hook->apply_filters( )	...\class-wp-hook.php:332
9	0.3242	9237000	rest_api_loaded( )	...\class-wp-hook.php:308
10	0.4045	11027872	WP_REST_Server->serve_request( )	...\rest-api.php:410
11	0.4109	11027616	WP_REST_Server->send_header( )	...\class-wp-rest-server.php:335
12	0.4109	11027984	header ( )	...\class-wp-rest-server.php:1768

( ! ) Warning: Cannot modify header information - headers already sent by (output started at C:\wamp64_2\www\docbase\wp-content\plugins\jetpack\class.jetpack-ixr-client.php:0) in C:\wamp64_2\www\docbase\wp-includes\rest-api\class-wp-rest-server.php on line 1768
Call Stack
#	Time	Memory	Function	Location
1	0.0001	402616	{main}( )	...\index.php:0
2	0.0002	402896	require( 'C:\wamp64_2\www\docbase\wp-blog-header.php' )	...\index.php:17
3	0.3234	9209280	wp( )	...\wp-blog-header.php:16
4	0.3234	9209304	WP->main( )	...\functions.php:1334
5	0.3234	9209304	WP->parse_request( )	...\class-wp.php:780
6	0.3241	9235984	do_action_ref_array( )	...\class-wp.php:399
7	0.3241	9235984	WP_Hook->do_action( )	...\plugin.php:565
8	0.3241	9235984	WP_Hook->apply_filters( )	...\class-wp-hook.php:332
9	0.3242	9237000	rest_api_loaded( )	...\class-wp-hook.php:308
10	0.4045	11027872	WP_REST_Server->serve_request( )	...\rest-api.php:410
11	0.4123	11027664	WP_REST_Server->send_header( )	...\class-wp-rest-server.php:359
12	0.4124	11028032	header ( )	...\class-wp-rest-server.php:1768

( ! ) Warning: Cannot modify header information - headers already sent by (output started at C:\wamp64_2\www\docbase\wp-content\plugins\jetpack\class.jetpack-ixr-client.php:0) in C:\wamp64_2\www\docbase\wp-includes\rest-api\class-wp-rest-server.php on line 1768
Call Stack
#	Time	Memory	Function	Location
1	0.0001	402616	{main}( )	...\index.php:0
2	0.0002	402896	require( 'C:\wamp64_2\www\docbase\wp-blog-header.php' )	...\index.php:17
3	0.3234	9209280	wp( )	...\wp-blog-header.php:16
4	0.3234	9209304	WP->main( )	...\functions.php:1334
5	0.3234	9209304	WP->parse_request( )	...\class-wp.php:780
6	0.3241	9235984	do_action_ref_array( )	...\class-wp.php:399
7	0.3241	9235984	WP_Hook->do_action( )	...\plugin.php:565
8	0.3241	9235984	WP_Hook->apply_filters( )	...\class-wp-hook.php:332
9	0.3242	9237000	rest_api_loaded( )	...\class-wp-hook.php:308
10	0.4045	11027872	WP_REST_Server->serve_request( )	...\rest-api.php:410
11	0.4510	11227400	WP_REST_Server->send_headers( )	...\class-wp-rest-server.php:459
12	0.4510	11227400	WP_REST_Server->send_header( )	...\class-wp-rest-server.php:1780
13	0.4510	11228040	header ( )	...\class-wp-rest-server.php:1768

( ! ) Warning: Cannot modify header information - headers already sent by (output started at C:\wamp64_2\www\docbase\wp-content\plugins\jetpack\class.jetpack-ixr-client.php:0) in C:\wamp64_2\www\docbase\wp-includes\rest-api\class-wp-rest-server.php on line 1768
Call Stack
#	Time	Memory	Function	Location
1	0.0001	402616	{main}( )	...\index.php:0
2	0.0002	402896	require( 'C:\wamp64_2\www\docbase\wp-blog-header.php' )	...\index.php:17
3	0.3234	9209280	wp( )	...\wp-blog-header.php:16
4	0.3234	9209304	WP->main( )	...\functions.php:1334
5	0.3234	9209304	WP->parse_request( )	...\class-wp.php:780
6	0.3241	9235984	do_action_ref_array( )	...\class-wp.php:399
7	0.3241	9235984	WP_Hook->do_action( )	...\plugin.php:565
8	0.3241	9235984	WP_Hook->apply_filters( )	...\class-wp-hook.php:332
9	0.3242	9237000	rest_api_loaded( )	...\class-wp-hook.php:308
10	0.4045	11027872	WP_REST_Server->serve_request( )	...\rest-api.php:410
11	0.4510	11227400	WP_REST_Server->send_headers( )	...\class-wp-rest-server.php:459
12	0.4528	11227400	WP_REST_Server->send_header( )	...\class-wp-rest-server.php:1780
13	0.4528	11227720	header ( )	...\class-wp-rest-server.php:1768

{"id":503,"date":"2017-07-07T12:08:52","date_gmt":"2017-07-07T12:08:52","guid":{"rendered":"https:\/\/sandbox.interswitchng.com\/docbase\/docs\/interswitch-security-headers\/header-computation\/signature-computation\/"},"modified":"2017-12-06T22:41:10","modified_gmt":"2017-12-06T22:41:10","slug":"signature-computation","status":"publish","type":"docs","link":"https:\/\/sandbox.interswitchng.com\/docbase\/docs\/interswitch-sec-headers\/header-computation\/signature-computation\/","title":{"rendered":"Signature Computation"},"content":{"rendered":"

The signature method should be SHA1 calculated against the data elements above in the order in which they are listed.
\nThe pseudo-code below shows how this can be done with any programming language of choice:<\/p>\n\n\n\n
String baseStringToBeSigned = http_verb + “&” +\u00a0 percent_encode(url) + \u201c&\u201d + timestamp + \u201c&\u201d + nonce + \u201c&\u201d + client_id + \u201c&\u201d + shared_secret_key;<\/p>\n
String signature = Base64(Hash(stringToBeSigned));<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"author":169,"featured_media":0,"parent":500,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"spay_email":""},"doc_tag":[],"_links":{"self":[{"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/503"}],"collection":[{"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/users\/169"}],"replies":[{"embeddable":true,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/comments?post=503"}],"version-history":[{"count":5,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/503\/revisions"}],"predecessor-version":[{"id":4203,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/503\/revisions\/4203"}],"up":[{"embeddable":true,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/500"}],"prev":[{"title":"Authorization Computation","link":"https:\/\/sandbox.interswitchng.com\/docbase\/docs\/interswitch-sec-headers\/header-computation\/authorization-computation\/","href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/502"}],"wp:attachment":[{"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/media?parent=503"}],"wp:term":[{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/doc_tag?post=503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}