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<div id="projectname">libpcp
&#160;<span id="projectnumber">0.2.1</span>
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<p>PCP public and secret key functions.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct__pcp__key__t.html">_pcp_key_t</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">PCP private key structure. <a href="struct__pcp__key__t.html#details">More...</a><br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct__pcp__pubkey__t.html">_pcp_pubkey_t</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">PCP public key structure. <a href="struct__pcp__pubkey__t.html#details">More...</a><br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct__pcp__rec__t.html">_pcp_rec_t</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Encrypted recipient list. <a href="struct__pcp__rec__t.html#details">More...</a><br/></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:gae88eb39995125f3b68b4ce9175b41732"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__pcp__key__t.html">_pcp_key_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a></td></tr>
<tr class="memdesc:gae88eb39995125f3b68b4ce9175b41732"><td class="mdescLeft">&#160;</td><td class="mdescRight">Typedef for secret keys. <a href="#gae88eb39995125f3b68b4ce9175b41732"></a><br/></td></tr>
<tr class="separator:gae88eb39995125f3b68b4ce9175b41732"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga859c793ca80717fdfc8ebef3e7224746"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__pcp__pubkey__t.html">_pcp_pubkey_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a></td></tr>
<tr class="memdesc:ga859c793ca80717fdfc8ebef3e7224746"><td class="mdescLeft">&#160;</td><td class="mdescRight">Typedef for public keys. <a href="#ga859c793ca80717fdfc8ebef3e7224746"></a><br/></td></tr>
<tr class="separator:ga859c793ca80717fdfc8ebef3e7224746"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gab69d94a862952b046c6f340d3c701dd0"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__pcp__rec__t.html">_pcp_rec_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gab69d94a862952b046c6f340d3c701dd0">pcp_rec_t</a></td></tr>
<tr class="memdesc:gab69d94a862952b046c6f340d3c701dd0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Typedef for public keys. <a href="#gab69d94a862952b046c6f340d3c701dd0"></a><br/></td></tr>
<tr class="separator:gab69d94a862952b046c6f340d3c701dd0"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
Enumerations</h2></td></tr>
<tr class="memitem:ga19da9fe7a497dcd854feff4d29e4472d"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#ga19da9fe7a497dcd854feff4d29e4472d">_PCP_KEY_TYPES</a> { <br/>
&#160;&#160;<a class="el" href="group__KEYS.html#gga19da9fe7a497dcd854feff4d29e4472da2cbd93780b8b12601c8243317f712b99">PCP_KEY_TYPE_MAINSECRET</a> = 1,
<a class="el" href="group__KEYS.html#gga19da9fe7a497dcd854feff4d29e4472da719ee3955ec3f9031d77f12759e75e62">PCP_KEY_TYPE_SECRET</a> = 2,
<a class="el" href="group__KEYS.html#gga19da9fe7a497dcd854feff4d29e4472da4ec09a5121dc8a4ebe8a9991058ed0f0">PCP_KEY_TYPE_PUBLIC</a> = 3,
<a class="el" href="group__KEYS.html#gga19da9fe7a497dcd854feff4d29e4472da416d3698781131f927f2fa0eaef32490">PCP_KEYSIG_NATIVE</a> = 4,
<br/>
&#160;&#160;<a class="el" href="group__KEYS.html#gga19da9fe7a497dcd854feff4d29e4472da1e1cd206d3b6397ae6e67c479956308b">PCP_KEYSIG_PBP</a> = 5
<br/>
}</td></tr>
<tr class="memdesc:ga19da9fe7a497dcd854feff4d29e4472d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Internal key types. <a href="group__KEYS.html#ga19da9fe7a497dcd854feff4d29e4472d">More...</a><br/></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaecf6a1829b4133350a7cb694c3eca8ad"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gaecf6a1829b4133350a7cb694c3eca8ad">pcpkey_new</a> ()</td></tr>
<tr class="memdesc:gaecf6a1829b4133350a7cb694c3eca8ad"><td class="mdescLeft">&#160;</td><td class="mdescRight">Generate a new key structure. <a href="#gaecf6a1829b4133350a7cb694c3eca8ad"></a><br/></td></tr>
<tr class="separator:gaecf6a1829b4133350a7cb694c3eca8ad"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gabdc09d45ad7a6f9f039f9240635a743f"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gabdc09d45ad7a6f9f039f9240635a743f">pcppubkey_get_art</a> (<a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a> *k)</td></tr>
<tr class="memdesc:gabdc09d45ad7a6f9f039f9240635a743f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Generate an ASCII art image of the public key. <a href="#gabdc09d45ad7a6f9f039f9240635a743f"></a><br/></td></tr>
<tr class="separator:gabdc09d45ad7a6f9f039f9240635a743f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga13aae5cf5986e308f1af674bedf0e6fd"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#ga13aae5cf5986e308f1af674bedf0e6fd">pcpkey_get_art</a> (<a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *k)</td></tr>
<tr class="memdesc:ga13aae5cf5986e308f1af674bedf0e6fd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Generate an ASCII art image of the public key part of a secret key. <a href="#ga13aae5cf5986e308f1af674bedf0e6fd"></a><br/></td></tr>
<tr class="separator:ga13aae5cf5986e308f1af674bedf0e6fd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga30c2d289b43fe80562fc74068f2566ae"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#ga30c2d289b43fe80562fc74068f2566ae">pcpkey_encrypt</a> (<a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *key, char *passphrase)</td></tr>
<tr class="memdesc:ga30c2d289b43fe80562fc74068f2566ae"><td class="mdescLeft">&#160;</td><td class="mdescRight">Encrypt a secret key structure. <a href="#ga30c2d289b43fe80562fc74068f2566ae"></a><br/></td></tr>
<tr class="separator:ga30c2d289b43fe80562fc74068f2566ae"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad91934413b36cfe316458c90ceb1eb99"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gad91934413b36cfe316458c90ceb1eb99">pcpkey_decrypt</a> (<a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *key, char *passphrase)</td></tr>
<tr class="memdesc:gad91934413b36cfe316458c90ceb1eb99"><td class="mdescLeft">&#160;</td><td class="mdescRight">Decrypt a secret key structure. <a href="#gad91934413b36cfe316458c90ceb1eb99"></a><br/></td></tr>
<tr class="separator:gad91934413b36cfe316458c90ceb1eb99"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga22c965c007208e860deaa4c145046283"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#ga22c965c007208e860deaa4c145046283">pcpkey_pub_from_secret</a> (<a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *key)</td></tr>
<tr class="memdesc:ga22c965c007208e860deaa4c145046283"><td class="mdescLeft">&#160;</td><td class="mdescRight">Generate a public key structure from a given secret key structure. <a href="#ga22c965c007208e860deaa4c145046283"></a><br/></td></tr>
<tr class="separator:ga22c965c007208e860deaa4c145046283"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaac64db4cd21af0cf79512ea0ea43261f"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gaac64db4cd21af0cf79512ea0ea43261f">pcp_getkeyid</a> (<a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *k)</td></tr>
<tr class="memdesc:gaac64db4cd21af0cf79512ea0ea43261f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate a key-id from public key fields. <a href="#gaac64db4cd21af0cf79512ea0ea43261f"></a><br/></td></tr>
<tr class="separator:gaac64db4cd21af0cf79512ea0ea43261f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gab16e85cdb769465c8ce8808b581c7a3d"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gab16e85cdb769465c8ce8808b581c7a3d">pcp_getpubkeyid</a> (<a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a> *k)</td></tr>
<tr class="memdesc:gab16e85cdb769465c8ce8808b581c7a3d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate a key-id from public key fields. <a href="#gab16e85cdb769465c8ce8808b581c7a3d"></a><br/></td></tr>
<tr class="separator:gab16e85cdb769465c8ce8808b581c7a3d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga78309dfa0b19b697ca64d8af2e7d796d"><td class="memItemLeft" align="right" valign="top">unsigned char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#ga78309dfa0b19b697ca64d8af2e7d796d">pcppubkey_getchecksum</a> (<a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a> *k)</td></tr>
<tr class="memdesc:ga78309dfa0b19b697ca64d8af2e7d796d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate a checksum of a public key. <a href="#ga78309dfa0b19b697ca64d8af2e7d796d"></a><br/></td></tr>
<tr class="separator:ga78309dfa0b19b697ca64d8af2e7d796d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaa2678fef0a024456ee82d1bfa60c5fb2"><td class="memItemLeft" align="right" valign="top">unsigned char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gaa2678fef0a024456ee82d1bfa60c5fb2">pcpkey_getchecksum</a> (<a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *k)</td></tr>
<tr class="memdesc:gaa2678fef0a024456ee82d1bfa60c5fb2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate a checksum of a public key part of the given secret key. <a href="#gaa2678fef0a024456ee82d1bfa60c5fb2"></a><br/></td></tr>
<tr class="separator:gaa2678fef0a024456ee82d1bfa60c5fb2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga2cea694131a6a86a9ba76c2514ef1bff"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#ga2cea694131a6a86a9ba76c2514ef1bff">pcpkey_exists</a> (char *id)</td></tr>
<tr class="memdesc:ga2cea694131a6a86a9ba76c2514ef1bff"><td class="mdescLeft">&#160;</td><td class="mdescRight">Checks if a secret key structure is registered in the secret key hash. <a href="#ga2cea694131a6a86a9ba76c2514ef1bff"></a><br/></td></tr>
<tr class="separator:ga2cea694131a6a86a9ba76c2514ef1bff"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gacad3aeb15a79c5d8d848452d33db08f8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gacad3aeb15a79c5d8d848452d33db08f8">pcppubkey_exists</a> (char *id)</td></tr>
<tr class="memdesc:gacad3aeb15a79c5d8d848452d33db08f8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Checks if a public key structure is registered in the public key hash. <a href="#gacad3aeb15a79c5d8d848452d33db08f8"></a><br/></td></tr>
<tr class="separator:gacad3aeb15a79c5d8d848452d33db08f8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga201b09819c67a813de56bee423dce5c9"><td class="memItemLeft" align="right" valign="top">unsigned char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#ga201b09819c67a813de56bee423dce5c9">pcp_gennonce</a> ()</td></tr>
<tr class="memdesc:ga201b09819c67a813de56bee423dce5c9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Generate a nonce. <a href="#ga201b09819c67a813de56bee423dce5c9"></a><br/></td></tr>
<tr class="separator:ga201b09819c67a813de56bee423dce5c9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gafd7aed4591ab1ef769e5d061fe77a3de"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gafd7aed4591ab1ef769e5d061fe77a3de">pcp_sanitycheck_pub</a> (<a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a> *key)</td></tr>
<tr class="memdesc:gafd7aed4591ab1ef769e5d061fe77a3de"><td class="mdescLeft">&#160;</td><td class="mdescRight">Make a sanity check of the given public key structure. <a href="#gafd7aed4591ab1ef769e5d061fe77a3de"></a><br/></td></tr>
<tr class="separator:gafd7aed4591ab1ef769e5d061fe77a3de"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga749e28028744cf7206492911564c559a"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#ga749e28028744cf7206492911564c559a">pcp_sanitycheck_key</a> (<a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *key)</td></tr>
<tr class="memdesc:ga749e28028744cf7206492911564c559a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Make a sanity check of the given secret key structure. <a href="#ga749e28028744cf7206492911564c559a"></a><br/></td></tr>
<tr class="separator:ga749e28028744cf7206492911564c559a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga8aa66f20f7671d80e75d7b05a7e692c4"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#ga8aa66f20f7671d80e75d7b05a7e692c4">pcp_dumpkey</a> (<a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *k)</td></tr>
<tr class="memdesc:ga8aa66f20f7671d80e75d7b05a7e692c4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Dump a secret key structure to stderr. <a href="#ga8aa66f20f7671d80e75d7b05a7e692c4"></a><br/></td></tr>
<tr class="separator:ga8aa66f20f7671d80e75d7b05a7e692c4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf37d43db0d210b3fbeab0929e3a76ebf"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__KEYS.html#gaf37d43db0d210b3fbeab0929e3a76ebf">pcp_dumppubkey</a> (<a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a> *k)</td></tr>
<tr class="memdesc:gaf37d43db0d210b3fbeab0929e3a76ebf"><td class="mdescLeft">&#160;</td><td class="mdescRight">Dump a public key structure to stderr. <a href="#gaf37d43db0d210b3fbeab0929e3a76ebf"></a><br/></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>PCP public and secret key functions. </p>
<p>Functions to generate PCP keypairs, de- and encrypt them and various related helpers. </p>
<h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">typedef struct <a class="el" href="struct__pcp__key__t.html">_pcp_key_t</a> <a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a></td>
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<p>Typedef for secret keys. </p>
<p>Definition at line <a class="el" href="key_8h_source.html#l00113">113</a> of file <a class="el" href="key_8h_source.html">key.h</a>.</p>
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<td class="memname">typedef struct <a class="el" href="struct__pcp__pubkey__t.html">_pcp_pubkey_t</a> <a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a></td>
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<p>Typedef for public keys. </p>
<p>Definition at line <a class="el" href="key_8h_source.html#l00140">140</a> of file <a class="el" href="key_8h_source.html">key.h</a>.</p>
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<td class="memname">typedef struct <a class="el" href="struct__pcp__rec__t.html">_pcp_rec_t</a> <a class="el" href="group__KEYS.html#gab69d94a862952b046c6f340d3c701dd0">pcp_rec_t</a></td>
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<p>Typedef for public keys. </p>
<p>Definition at line <a class="el" href="key_8h_source.html#l00174">174</a> of file <a class="el" href="key_8h_source.html">key.h</a>.</p>
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<h2 class="groupheader">Enumeration Type Documentation</h2>
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<td class="memname">enum <a class="el" href="group__KEYS.html#ga19da9fe7a497dcd854feff4d29e4472d">_PCP_KEY_TYPES</a></td>
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<p>Internal key types. </p>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="gga19da9fe7a497dcd854feff4d29e4472da2cbd93780b8b12601c8243317f712b99"></a>PCP_KEY_TYPE_MAINSECRET</em>&nbsp;</td><td>
<p>1 - Primary secret </p>
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<tr><td valign="top"><em><a class="anchor" id="gga19da9fe7a497dcd854feff4d29e4472da719ee3955ec3f9031d77f12759e75e62"></a>PCP_KEY_TYPE_SECRET</em>&nbsp;</td><td>
<p>2 - Other secret </p>
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<tr><td valign="top"><em><a class="anchor" id="gga19da9fe7a497dcd854feff4d29e4472da4ec09a5121dc8a4ebe8a9991058ed0f0"></a>PCP_KEY_TYPE_PUBLIC</em>&nbsp;</td><td>
<p>3 - Public </p>
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<tr><td valign="top"><em><a class="anchor" id="gga19da9fe7a497dcd854feff4d29e4472da416d3698781131f927f2fa0eaef32490"></a>PCP_KEYSIG_NATIVE</em>&nbsp;</td><td>
<p>4 - PCP native key signature </p>
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<tr><td valign="top"><em><a class="anchor" id="gga19da9fe7a497dcd854feff4d29e4472da1e1cd206d3b6397ae6e67c479956308b"></a>PCP_KEYSIG_PBP</em>&nbsp;</td><td>
<p>5 - PBP key signature </p>
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<p>Definition at line <a class="el" href="defines_8h_source.html#l00092">92</a> of file <a class="el" href="defines_8h_source.html">defines.h</a>.</p>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void pcp_dumpkey </td>
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<td class="paramtype"><a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *&#160;</td>
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<p>Dump a secret key structure to stderr. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">k</td><td>Secret key to dump. </td></tr>
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<td class="memname">void pcp_dumppubkey </td>
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<td class="paramtype"><a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a> *&#160;</td>
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<p>Dump a public key structure to stderr. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">k</td><td>Public key to dump. </td></tr>
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<td class="memname">unsigned char* pcp_gennonce </td>
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<p>Generate a nonce. </p>
<p>This function generates a 24 byte nonce used for cryptographic functions. It allocates the memory and the caller is responsible to clear and free() it after use.</p>
<dl class="section return"><dt>Returns</dt><dd>Returns a pointer to a 24 byte unsigned char array. </dd></dl>
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<td class="memname">char* pcp_getkeyid </td>
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<p>Calculate a key-id from public key fields. </p>
<p>This function calculates 2 JEN Hashes: one from the 'pub' field and one from the 'edpub' field. It the puts them together into a newly allocated char pointer of 17 bytes length as hex, terminated with a 0.</p>
<p>The key-id is supposed to be collision save, but there's no guarantee. However, it's used locally only, it wont be transmitted over the network and it's not part of any exported packet.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">k</td><td>The secret key structure.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns a char pointer containing the key-id string. </dd></dl>
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<td class="memname">char* pcp_getpubkeyid </td>
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<p>Calculate a key-id from public key fields. </p>
<p>This does the same as <a class="el" href="group__KEYS.html#gaac64db4cd21af0cf79512ea0ea43261f" title="Calculate a key-id from public key fields.">pcp_getkeyid()</a> but uses a pcp_pubkey_t as input.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">k</td><td>The public key structure.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns a char pointer containing the key-id string. </dd></dl>
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<td class="memname">int pcp_sanitycheck_key </td>
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<p>Make a sanity check of the given secret key structure. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">key</td><td>The secret key structure.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns 1 if the sanity check succeeds, 0 otherwise. Use <a class="el" href="group__FATALS.html#ga0ea01da59af8a06c55258d78da6cb0cb" title="Prints error messages to STDERR, if there are some.">fatals_ifany()</a> to check why. </dd></dl>
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<td class="memname">int pcp_sanitycheck_pub </td>
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<p>Make a sanity check of the given public key structure. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">key</td><td>The public key structure.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns 1 if the sanity check succeeds, 0 otherwise. Use <a class="el" href="group__FATALS.html#ga0ea01da59af8a06c55258d78da6cb0cb" title="Prints error messages to STDERR, if there are some.">fatals_ifany()</a> to check why. </dd></dl>
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<td class="memname"><a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a>* pcpkey_decrypt </td>
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<p>Decrypt a secret key structure. </p>
<p>The given passphrase will be used to calculate an encryption key using the scrypt() function.</p>
<p>The encryption key will be used to decrypt the 'encrypted' field of the structure. If it works, the result will be dissected and put into the correspondig secret key fields.</p>
<p>The data structure will be modified directly, no new memory will be allocated.</p>
<p>The caller is responsible to clear the passphrase right after use and free() it as soon as possible.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in,out]</td><td class="paramname">key</td><td>The secret key structure.</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">passphrase</td><td>The passphrase used to decrypt the key.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns a pointer to the decrypted key structure or NULL in case of an error. Use <a class="el" href="group__FATALS.html#ga0ea01da59af8a06c55258d78da6cb0cb" title="Prints error messages to STDERR, if there are some.">fatals_ifany()</a> to catch them. </dd></dl>
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<td class="memname"><a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a>* pcpkey_encrypt </td>
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<p>Encrypt a secret key structure. </p>
<p>The given passphrase will be used to calculate an encryption key using the scrypt() function.</p>
<p>The secret keys will be concatenated and encrypted, the result will be put into the 'encrypted' field. The first byte of each secret key field will be set to 0 to indicate the key is encrypted.</p>
<p>The data structure will be modified directly, no new memory will be allocated.</p>
<p>The caller is responsible to clear the passphrase right after use and free() it as soon as possible.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in,out]</td><td class="paramname">key</td><td>The secret key structure.</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">passphrase</td><td>The passphrase used to encrypt the key.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns a pointer to the encrypted key structure or NULL in case of an error. Use <a class="el" href="group__FATALS.html#ga0ea01da59af8a06c55258d78da6cb0cb" title="Prints error messages to STDERR, if there are some.">fatals_ifany()</a> to catch them. </dd></dl>
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<p>Checks if a secret key structure is registered in the secret key hash. </p>
<p>Returns a pointer to a pcp_key_t structure if there exists a secret key structure with the given id in the secret key hash.</p>
<p>FIXME: needs to be moved to <a class="el" href="keyhash_8h_source.html">keyhash.h</a>.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">id</td><td>A null-terminated char pointer of 17 bytes containing a key-id.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns a pointer to a pcp_key_t struture or NULL if no key exists. </dd></dl>
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<td class="memname">char* pcpkey_get_art </td>
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<p>Generate an ASCII art image of the public key part of a secret key. </p>
<p>see <a class="el" href="group__KEYS.html#gabdc09d45ad7a6f9f039f9240635a743f" title="Generate an ASCII art image of the public key.">pcppubkey_get_art()</a> for details.</p>
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<tr><td class="paramdir">[in]</td><td class="paramname">k</td><td>The secret key structure.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns an allocated char pointer containing the ASCII art image. The caller is responsible to free() it. </dd></dl>
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<td class="memname">unsigned char* pcpkey_getchecksum </td>
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<p>Calculate a checksum of a public key part of the given secret key. </p>
<p>See <a class="el" href="group__KEYS.html#ga78309dfa0b19b697ca64d8af2e7d796d" title="Calculate a checksum of a public key.">pcppubkey_getchecksum()</a>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">k</td><td>The secret key structure.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns a pointer to an 32 byte unsigned char. </dd></dl>
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<td class="memname"><a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a>* pcpkey_new </td>
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<p>Generate a new key structure. </p>
<p>Owner and mail field must be filled by the caller. Memory for the returned pointer will be allocated by the function.</p>
<dl class="section return"><dt>Returns</dt><dd>Returns pointer to new pcp_key_t structure. </dd></dl>
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<td class="memname"><a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a>* pcpkey_pub_from_secret </td>
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<td class="paramtype"><a class="el" href="group__KEYS.html#gae88eb39995125f3b68b4ce9175b41732">pcp_key_t</a> *&#160;</td>
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<p>Generate a public key structure from a given secret key structure. </p>
<p>This function extracts all required fields and fills a newly allocated pcp_pubkey_t structure.</p>
<p>The caller is responsible to clear and free() it after use.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">key</td><td>The secret key structure.</td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a new pcp_pubkey_t structure. </dd></dl>
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<td class="memname"><a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a>* pcppubkey_exists </td>
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<p>Checks if a public key structure is registered in the public key hash. </p>
<p>Returns a pointer to a pcp_pubkey_t structure if there exists a public key structure with the given id in the public key hash.</p>
<p>FIXME: needs to be moved to <a class="el" href="keyhash_8h_source.html">keyhash.h</a>.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">id</td><td>A null-terminated char pointer of 17 bytes containing a key-id.</td></tr>
</table>
</dd>
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<dl class="section return"><dt>Returns</dt><dd>Returns a pointer to a pcp_pubkey_t struture or NULL if no key exists. </dd></dl>
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<td class="memname">char* pcppubkey_get_art </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__KEYS.html#ga859c793ca80717fdfc8ebef3e7224746">pcp_pubkey_t</a> *&#160;</td>
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<p>Generate an ASCII art image of the public key. </p>
<p>This functions originally appeared in OpenSSH rev 1.70, comitted by Alexander von Gernler, published under the BSD license.</p>
<p>Human beings are bad at memorizing numbers, especially large numbers, but we are very good at recognizing images. This function calculates an ascii art image of a public key, which the user shall always see, when used. If the image changes, the user would immediately recognize the change, even unconsciously.</p>
<p>Sample random art image from the following public key:</p>
<div class="fragment"><div class="line">c308455ed4cf0c140bf48bfb0d87c4999c66e823bbe74ff16e2a9adc8e770747</div>
<div class="line"></div>
<div class="line">+----------------+</div>
<div class="line">| .o.ooo. |</div>
<div class="line">| o . o |</div>
<div class="line">| . . = |</div>
<div class="line">| . o + |</div>
<div class="line">| . + |</div>
<div class="line">| . |</div>
<div class="line">| |</div>
<div class="line">| |</div>
<div class="line">+----------------+</div>
</div><!-- fragment --><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">k</td><td>The public key structure.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns an allocated char pointer containing the ASCII art image. The caller is responsible to free() it. </dd></dl>
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<td class="memname">unsigned char* pcppubkey_getchecksum </td>
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<p>Calculate a checksum of a public key. </p>
<p>This function calculates a 32 byte checksum of the encryption public key part of the given pcp_pubkey_t structure using crypto_hash_sha256.</p>
<p>The returned pointer will be allocated and it is the responsibility of the caller to free() ist after use.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">k</td><td>The public key structure.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns a pointer to an 32 byte unsigned char. </dd></dl>
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