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diff -up Linux-PAM-1.1.5/modules/pam_unix/pam_unix.8.xml.no-fallback Linux-PAM-1.1.5/modules/pam_unix/pam_unix.8.xml
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--- Linux-PAM-1.1.5/modules/pam_unix/pam_unix.8.xml.no-fallback 2011-06-21 11:04:56.000000000 +0200
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+++ Linux-PAM-1.1.5/modules/pam_unix/pam_unix.8.xml 2012-05-09 11:54:34.442036404 +0200
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@@ -265,11 +265,10 @@
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<listitem>
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<para>
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When a user changes their password next,
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- encrypt it with the SHA256 algorithm. If the
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- SHA256 algorithm is not known to the <citerefentry>
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+ encrypt it with the SHA256 algorithm. The
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+ SHA256 algorithm must be supported by the <citerefentry>
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<refentrytitle>crypt</refentrytitle><manvolnum>3</manvolnum>
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- </citerefentry> function,
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- fall back to MD5.
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+ </citerefentry> function.
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</para>
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</listitem>
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</varlistentry>
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@@ -280,11 +279,10 @@
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<listitem>
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<para>
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When a user changes their password next,
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- encrypt it with the SHA512 algorithm. If the
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- SHA512 algorithm is not known to the <citerefentry>
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+ encrypt it with the SHA512 algorithm. The
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+ SHA512 algorithm must be supported by the <citerefentry>
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<refentrytitle>crypt</refentrytitle><manvolnum>3</manvolnum>
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- </citerefentry> function,
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- fall back to MD5.
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+ </citerefentry> function.
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</para>
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</listitem>
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</varlistentry>
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@@ -295,11 +293,10 @@
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<listitem>
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<para>
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When a user changes their password next,
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- encrypt it with the blowfish algorithm. If the
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- blowfish algorithm is not known to the <citerefentry>
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+ encrypt it with the blowfish algorithm. The
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+ blowfish algorithm must be supported by the <citerefentry>
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<refentrytitle>crypt</refentrytitle><manvolnum>3</manvolnum>
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- </citerefentry> function,
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- fall back to MD5.
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+ </citerefentry> function.
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</para>
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</listitem>
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</varlistentry>
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diff -up Linux-PAM-1.1.5/modules/pam_unix/passverify.c.no-fallback Linux-PAM-1.1.5/modules/pam_unix/passverify.c
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--- Linux-PAM-1.1.5/modules/pam_unix/passverify.c.no-fallback 2012-05-09 11:48:12.409632377 +0200
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+++ Linux-PAM-1.1.5/modules/pam_unix/passverify.c 2012-05-09 11:48:36.953172291 +0200
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@@ -427,15 +427,14 @@ PAMH_ARG_DECL(char * create_password_has
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if (!sp || strncmp(algoid, sp, strlen(algoid)) != 0) {
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/* libxcrypt/libc doesn't know the algorithm, use MD5 */
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pam_syslog(pamh, LOG_ERR,
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- "Algo %s not supported by the crypto backend, "
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- "falling back to MD5\n",
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+ "Algo %s not supported by the crypto backend.\n",
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on(UNIX_BLOWFISH_PASS, ctrl) ? "blowfish" :
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on(UNIX_SHA256_PASS, ctrl) ? "sha256" :
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on(UNIX_SHA512_PASS, ctrl) ? "sha512" : algoid);
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if(sp) {
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memset(sp, '\0', strlen(sp));
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}
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- return crypt_md5_wrapper(password);
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+ return NULL;
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}
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return x_strdup(sp);
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