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Comment:Added hashes command to list OpenSSL supported hash digests.
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SHA3-256: 78cf3787966eb397c64551ff54c25c9da4956f64a3a29b69289e802412c7bb49
User & Date: bohagan on 2023-10-10 04:10:56
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Context
2023-10-11
22:34
Modified ciphers command to make protocol arg optional to list all supported ciphers. check-in: a44d361c13 user: bohagan tags: crypto
2023-10-10
04:10
Added hashes command to list OpenSSL supported hash digests. check-in: 78cf378796 user: bohagan tags: crypto
02:43
Added hash command to calculate hash using any OpenSSL digest. Added convenience commands for md4, md5, sha1, and sha-256 digests. check-in: cafd2dc6ba user: bohagan tags: crypto
Changes
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Modified doc/tls.html from [82151ac090] to [fe68420626].

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	    <dd><b>tls::unimport</b> <em>channel</em></dd>
	    <dt>&nbsp;</dt>
	    <dd><b>tls::ciphers</b> <em>protocol ?verbose? ?supported?</em></dd>
	    <dd><b>tls::protocols</b></dd>
	    <dd><b>tls::version</b></dd>
	    <dt>&nbsp;</dt>
	    <dd><b>tls::hash</b> <em>type data</em></dd>
	    <dd><b>tls::hashes</b></dd>
	    <dd><b>tls::md4</b> <em>data</em></dd>
	    <dd><b>tls::md5</b> <em>data</em></dd>
	    <dd><b>tls::sha1</b> <em>data</em></dd>
	    <dd><b>tls::sha256</b> <em>data</em></dd>
	</dl>
    </dd>
    <dd><a href="#COMMANDS">COMMANDS</a></dd>
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<a href="#tls::unimport"><b>tls::unimport</b> <i>channel</i></a><br>
<br>
<a href="#tls::ciphers"><b>tls::ciphers</b> <i>protocol ?verbose? ?supported?</i></a><br>
<a href="#tls::protocols"><b>tls::protocols</b></a><br>
<a href="#tls::version"><b>tls::version</b></a><br>
<br>
<a href="#tls::hash"><b>tls::hash</b> <i>type data</i></a><br>
<a href="#tls::hashes"><b>tls::hashes</b></a><br>
<a href="#tls::md4"><b>tls::md4</b> <i>data</i></a><br>
<a href="#tls::md5"><b>tls::md5</b> <i>data</i></a><br>
<a href="#tls::sha1"><b>tls::sha1</b> <i>data</i></a><br>
<a href="#tls::sha256"><b>tls::sha256</b> <i>data</i></a><br>
</p>

<h3><a name="DESCRIPTION">DESCRIPTION</a></h3>
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    <dt><a name="tls::hash"><strong>tls::hash</strong> <em>type data</em></a></dt>
    <dd>Calculate the hash for <em>data</em> using <em>type</em> digest.
	Returns value as a hex string. Type cam be any OpenSSL supported
	hash digest including: <b>md4</b>, <b>md5</b>, <b>sha1</b>,
	sha2 (<b>sha224</b>, <b>sha256</b>, <b>sha384</b>, <b>sha512</b>,
	<b>sha512-224</b>, and <b>sha512-256</b>),
	sha3 (<b>sha3-224</b>, <b>sha3-256</b>, <b>sha3-384</b>, and <b>sha3-512</b>), etc.</dd>

    <dt><a name="tls::hashes"><strong>tls::hashes</strong></a></dt>
    <dd>Returns a list of the valid hash digests.</dd>

    <dt><a name="tls::md4"><strong>tls::md4</strong> <em>data</em></a></dt>
    <dd>Calculate the hash for <em>data</em> using the MD4 message-digest algorithm.</dd>

    <dt><a name="tls::md5"><strong>tls::md5</strong> <em>data</em></a></dt>
    <dd>Calculate the hash for <em>data</em> using the MD5 message-digest algorithm.</dd>
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Modified generic/tls.c from [30dc12770e] to [d77314704b].

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    }
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * Hash Commands -- Return hash hex string for message digest
 * Hash Commands -- Return hash value for digest as hex string
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	None.
 *
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/*
 * Command to Calculate SHA-256 Hash
 */
int
HashSHA256Cmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    return HashCalc(interp, objc, objv, EVP_sha256());
}

/*
 *-------------------------------------------------------------------
 *
 * Hash List Command -- Return list of hash message digests
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */

void HashListCallback(const OBJ_NAME *obj, void *arg) {
    Tcl_Obj *objPtr = (Tcl_Obj *) arg;
    Tcl_ListObjAppendElement(NULL, objPtr, Tcl_NewStringObj(obj->name,-1));
}

/*
 * Command to list available Hash values
 */
int
HashListCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    Tcl_Obj *objPtr = Tcl_NewListObj(0, NULL);

    OpenSSL_add_all_digests(); //make sure they're loaded
    OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, HashListCallback, (void *) objPtr);
    Tcl_ResetResult(interp);
    Tcl_SetObjResult(interp, objPtr);

    return TCL_OK;
	clientData = clientData;
	objc = objc;
	objv = objv;
}

/*
 *-------------------------------------------------------------------
 *
 * CiphersObjCmd -- list available ciphers
 *
 *	This procedure is invoked to process the "tls::ciphers" command
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    Tcl_CreateObjCommand(interp, "tls::unimport", UnimportObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::status", StatusObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::version", VersionObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::misc", MiscObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::protocols", ProtocolsObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);

    Tcl_CreateObjCommand(interp, "tls::hash", HashCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::hashes", HashListCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::md4", HashMD4Cmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::md5", HashMD5Cmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::sha1", HashSHA1Cmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::sha256", HashSHA256Cmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);

    if (interp) {
	Tcl_Eval(interp, tlsTclInitScript);
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