File gnupg-add_legacy_FIPS_mode_option.patch of Package gpg2

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File gnupg-add_legacy_FIPS_mode_option.patch of Package gpg2

---
 doc/gpg.texi |   18 ++++++++++++++++++
 g10/gpg.c    |    9 +++++++++
 2 files changed, 27 insertions(+)

Index: gnupg-2.5.1/doc/gpg.texi
===================================================================
--- gnupg-2.5.1.orig/doc/gpg.texi
+++ gnupg-2.5.1/doc/gpg.texi
@@ -2340,6 +2340,24 @@ implies, this option is for experts only
 understand the implications of what it allows you to do, leave this
 off. @option{--no-expert} disables this option.
 
+@item --set-legacy-fips
+@itemx --set-legacy-fips
+@opindex set-legacy-fips
+Enable legacy support even when the libgcrypt library is in FIPS 140-2
+mode. The legacy mode of libgcrypt allows the use of all ciphers,
+including non-approved ciphers. This mode is needed when for legacy
+reasons a message must be encrypted or decrypted. Legacy reasons for
+decryptions include the decryption of old messages created with a
+public key that use cipher settings which do not meet FIPS 140-2
+requirements. Legacy reasons for encryption include the encryption
+of messages with a recipients public key where the recipient is not
+bound to FIPS 140-2 regulation and therefore provided a key using
+non-approved ciphers. Although the legacy mode is a violation of strict
+FIPS 140-2 rule interpretations, it is wise to use this mode or
+either not being able to access old messages or not being able
+to create encrypted messages to a recipient that is not adhering
+to FIPS 140-2 rules.
+
 @end table
 
 
Index: gnupg-2.5.1/g10/gpg.c
===================================================================
--- gnupg-2.5.1.orig/g10/gpg.c
+++ gnupg-2.5.1/g10/gpg.c
@@ -455,6 +455,7 @@ enum cmd_and_opt_values
     oForceSignKey,
     oForbidGenKey,
     oRequireCompliance,
+    oSetLegacyFips,
     oCompatibilityFlags,
     oAddDesigRevoker,
     oAssertSigner,
@@ -906,6 +907,7 @@ static gpgrt_opt_t opts[] = {
   ARGPARSE_s_s (oCipherAlgo, "cipher-algo", "@"),
   ARGPARSE_s_s (oDigestAlgo, "digest-algo", "@"),
   ARGPARSE_s_s (oCertDigestAlgo, "cert-digest-algo", "@"),
+  ARGPARSE_s_n (oSetLegacyFips, "set-legacy-fips", "@"),
   ARGPARSE_s_n (oRequirePQCEncryption, "require-pqc-encryption", "@"),
 
   ARGPARSE_header (NULL, N_("Options for unattended use")),
@@ -3855,6 +3857,14 @@ main (int argc, char **argv)
             keybox_set_buffersize (pargs.r.ret_ulong, 0);
             break;
 
+         case oSetLegacyFips:
+           if(gcry_fips_mode_active())
+             gcry_control (GCRYCTL_INACTIVATE_FIPS_FLAG,
+                           "Enable legacy support in FIPS 140-2 mode");
+           else
+             log_info ("Command set-legacy-fips ignored as libgcrypt is not in FIPS mode\n");
+           break;
+
 	  case oNoop: break;
 
 	  default:

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File gnupg-add_legacy_FIPS_mode_option.patch of Package gpg2

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