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-2.3.5/doc/gpg.texi
===================================================================
--- gnupg-2.3.5.orig/doc/gpg.texi
+++ gnupg-2.3.5/doc/gpg.texi
@@ -2197,6 +2197,24 @@ 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-2.3.5/g10/gpg.c
===================================================================
--- gnupg-2.3.5.orig/g10/gpg.c
+++ gnupg-2.3.5/g10/gpg.c
@@ -443,6 +443,7 @@ enum cmd_and_opt_values
     oForceSignKey,
     oForbidGenKey,
     oRequireCompliance,
+    oSetLegacyFips,
 
     oNoop
   };
@@ -878,6 +879,7 @@ static gpgrt_opt_t opts[] = {
   ARGPARSE_s_s (oDigestAlgo, "digest-algo", "@"),
   ARGPARSE_s_s (oCertDigestAlgo, "cert-digest-algo", "@"),
   ARGPARSE_s_n (oOverrideComplianceCheck, "override-compliance-check", "@"),
+  ARGPARSE_s_n (oSetLegacyFips, "set-legacy-fips", "@"),
 
 
   ARGPARSE_header (NULL, N_("Options for unattended use")),
@@ -3737,6 +3739,14 @@ main (int argc, char **argv)
             opt.flags.require_compliance = 1;
             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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