From 338f8f672908c15d2a6e494520899389c53ec648 Mon Sep 17 00:00:00 2001
From: shimunn <shimun@shimun.net>
Date: Fri, 6 Sep 2019 23:28:28 +0200
Subject: [PATCH] only accept signed snippets

---
 Cargo.lock  | 931 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 Cargo.toml  |   2 +
 src/main.rs |  22 +-
 src/pgp.rs  |  51 +++
 4 files changed, 995 insertions(+), 11 deletions(-)
 create mode 100644 src/pgp.rs

diff --git a/Cargo.lock b/Cargo.lock
index 1cc7154..ac5cd7f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,10 +1,81 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "adler32"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "aho-corasick"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "ansi_term"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "arrayref"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "arrayvec"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "ascii-canvas"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "term 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "atty"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "autocfg"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "backtrace"
+version = "0.3.37"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "backtrace-sys 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "backtrace-sys"
+version = "0.1.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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 version = "0.9.3"
@@ -14,11 +85,80 @@ dependencies = [
  "safemem 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
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+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+dependencies = [
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cexpr 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clang-sys 0.26.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hashbrown 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "peeking_take_while 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "which 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bit-set"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bit-vec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bit-vec"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "blake2b_simd"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "arrayvec 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "constant_time_eq 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "block-buffer"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "block-padding 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "generic-array 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "block-padding"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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@@ -26,11 +166,28 @@ dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "iron 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sequoia-openpgp 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "snap 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bzip2 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "flate2 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "byte-tools"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "byteorder"
 version = "0.5.3"
@@ -41,6 +198,37 @@ name = "byteorder"
 version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "bzip2"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bzip2-sys 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bzip2-sys"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "cc"
+version = "1.0.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "cexpr"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "nom 4.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "cfg-if"
 version = "0.1.7"
@@ -51,12 +239,36 @@ name = "chrono"
 version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-integer 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "clang-sys"
+version = "0.26.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libloading 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "clap"
+version = "2.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "cloudabi"
 version = "0.0.3"
@@ -65,11 +277,162 @@ dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "constant_time_eq"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
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+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+]
+
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+version = "0.6.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+
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+ "miniz_oxide 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "generic-array"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "glob"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "hashbrown"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "httparse"
 version = "1.3.3"
@@ -118,6 +481,43 @@ dependencies = [
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "either 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "lalrpop"
+version = "0.17.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ascii-canvas 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bit-set 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "diff 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "docopt 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ena 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lalrpop-util 0.17.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "petgraph 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "string_cache 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "term 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "lalrpop-util"
+version = "0.17.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "language-tags"
 version = "0.2.2"
@@ -129,10 +529,24 @@ version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "libc"
-version = "0.2.51"
+name = "lazy_static"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "libc"
+version = "0.2.62"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "libloading"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "log"
 version = "0.3.9"
@@ -149,11 +563,32 @@ dependencies = [
  "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "mach_o_sys"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "matches"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "memchr"
+version = "2.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "memsec"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "getrandom 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mach_o_sys 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "mime"
 version = "0.2.6"
@@ -173,11 +608,67 @@ dependencies = [
  "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "miniz-sys"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "adler32 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "modifier"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "nettle"
+version = "5.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "getrandom 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nettle-sys 2.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "nettle-sys"
+version = "2.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bindgen 0.47.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
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+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "nom"
+version = "4.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "num-integer"
 version = "0.1.40"
@@ -200,14 +691,38 @@ name = "num_cpus"
 version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "opaque-debug"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "ordermap"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "peeking_take_while"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "percent-encoding"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "petgraph"
+version = "0.4.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fixedbitset 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ordermap 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "phf"
 version = "0.7.24"
@@ -243,6 +758,11 @@ dependencies = [
  "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "pkg-config"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "plugin"
 version = "0.2.6"
@@ -251,13 +771,61 @@ dependencies = [
  "typemap 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "precomputed-hash"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "proc-macro2"
+version = "0.4.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "quickcheck"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "env_logger 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "quote"
+version = "0.6.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rand"
 version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -269,7 +837,7 @@ version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_chacha 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_hc 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -324,7 +892,7 @@ name = "rand_jitter"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -336,7 +904,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -372,6 +940,48 @@ name = "redox_syscall"
 version = "0.1.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "redox_users"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.52 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rust-argon2 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
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+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "blake2b_simd 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rustc-serialize"
 version = "0.3.24"
@@ -382,6 +992,72 @@ name = "safemem"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
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+
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+ "buffered-reader 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bzip2 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "flate2 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "idna 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lalrpop 0.17.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lalrpop-util 0.17.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memsec 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nettle 5.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quickcheck 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sequoia-rfc2822 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+]
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+ "lalrpop-util 0.17.2 (registry+https://github.com/rust-lang/crates.io-index)",
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+]
+
+[[package]]
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+ "proc-macro2 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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+ "digest 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fake-simd 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "opaque-debug 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "siphasher"
 version = "0.2.3"
@@ -401,12 +1077,110 @@ dependencies = [
  "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
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+ "phf_shared 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "precomputed-hash 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
+ "string_cache_codegen 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "string_cache_shared 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "dirs 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "time"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.52 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -429,6 +1203,11 @@ dependencies = [
  "unsafe-any 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "typenum"
+version = "1.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "unicase"
 version = "1.4.2"
@@ -453,6 +1232,21 @@ dependencies = [
  "smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "unicode-width"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "unicode-xid"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "unsafe-any"
 version = "0.4.2"
@@ -471,11 +1265,30 @@ dependencies = [
  "percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "vec_map"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "version_check"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
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+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "which"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.7"
@@ -496,37 +1309,106 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
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diff --git a/Cargo.toml b/Cargo.toml
index abe62de..f72d70f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,3 +16,5 @@ rand = "0.4.2"
 
 byteorder = "1.3.2"
 chrono = "0.4.9"
+sequoia-openpgp = "0.9.0"
+lazy_static = "1.4.0"
diff --git a/src/main.rs b/src/main.rs
index a94faf9..e40a324 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,21 +1,30 @@
+#[macro_use]
+extern crate lazy_static;
 extern crate chrono;
 extern crate iron;
 extern crate rand;
+extern crate sequoia_openpgp as openpgp;
 extern crate snap;
 
+mod pgp;
+
+use crate::pgp::KnownKeys;
 use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
 use chrono::*;
+use core::cell::RefCell;
 use iron::method::Method;
 use iron::modifiers::Redirect;
 use iron::prelude::*;
 use iron::url::Url;
 use rand::Rng;
+use std::borrow::BorrowMut;
 use std::fs;
 use std::fs::File;
 use std::io;
 use std::io::prelude::*;
 use std::iter::Iterator;
 use std::path::{Path, PathBuf};
+use std::sync::Mutex;
 
 struct Snippet<'a> {
     id: String,
@@ -137,6 +146,12 @@ const STORAGE_DIR: &str = "/snips";
 #[cfg(debug_assertions)]
 const STORAGE_DIR: &str = "/tmp";
 
+lazy_static! {
+    static ref KNOWN_KEYS: Mutex<KnownKeys> = Mutex::new(
+        KnownKeys::load_dir([STORAGE_DIR, "keys"].join("/")).expect("Failed to load pubkeys")
+    );
+}
+
 const VERSION: &str = env!("CARGO_PKG_VERSION");
 
 fn handle(req: &mut Request) -> IronResult<Response> {
@@ -148,7 +163,7 @@ fn handle(req: &mut Request) -> IronResult<Response> {
         (Method::Post, Some(path)) => {
             if path == &"new" {
                 let snip = {
-                    let text: String = {
+                    let pgp_text: String = {
                         let bytes = ((&mut req.body).bytes().take(1024 * 512).collect::<Result<
                             Vec<u8>,
                             io::Error,
@@ -158,6 +173,11 @@ fn handle(req: &mut Request) -> IronResult<Response> {
                         String::from_utf8(bytes)
                             .map_err(|err| IronError::new(err, "Invalid utf8"))?
                     };
+                    let b_text = KNOWN_KEYS
+                        .lock().unwrap()//.map_err(|_| IronError::new(std::error::Error::from("Mutex Err"), "PGP Context unavailable"))?
+                        .verify(pgp_text.as_bytes())
+                        .map_err(|err| IronError::new(err, "Untrusted signature"))?;
+                    let text = String::from_utf8(b_text).unwrap();
                     Snippet::random(&storage).write(&*text).map_err(|err| {
                         let msg = format!("Failed to save snippet: {:?}", &err);
                         IronError::new(err, msg)
diff --git a/src/pgp.rs b/src/pgp.rs
new file mode 100644
index 0000000..6e92a2f
--- /dev/null
+++ b/src/pgp.rs
@@ -0,0 +1,51 @@
+use std::io;
+use std::fs;
+use std::fs::{File};
+use std::path::Path;
+use std::io::prelude::*;
+use openpgp::parse::Parse;
+use openpgp::*;
+use openpgp::parse::stream::*;
+
+
+pub struct KnownKeys {
+ keys: Vec<openpgp::TPK>
+}
+impl VerificationHelper for &KnownKeys {
+
+    fn get_public_keys(&mut self, _ids: &[KeyID]) -> Result<Vec<TPK>> {
+        Ok(self.keys.clone())
+    }
+    fn check(&mut self, structure: &MessageStructure) -> Result<()> {
+        Ok(()) // Implement your verification policy here.
+    }
+}
+
+impl KnownKeys {
+    pub fn load_dir(dir: impl AsRef<Path>) -> io::Result<KnownKeys> {
+        let mut keys: Vec<openpgp::TPK> = Vec::with_capacity(3);
+        for f in fs::read_dir(dir)? {
+            let f = f?;
+            if f.metadata()?.is_dir() {
+                continue;
+            }
+            let tpk = openpgp::TPK::from_file(f.path()).unwrap();
+            println!("Fingerprint: {}", tpk.fingerprint());
+            keys.push(tpk);
+        }
+        Ok(KnownKeys{
+            keys: keys
+        })
+    }
+
+    pub fn verify(&mut self, r: impl Read) -> io::Result<Vec<u8>> {
+        let mut content = Vec::with_capacity(2048);
+        let helper = &*self;
+        let mut v = Verifier::<&KnownKeys>::from_reader(r, helper, None).map_err(|e| dbg!(e)).unwrap();
+        if v.read_to_end(&mut content).is_err() {
+            return Err(io::Error::new(io::ErrorKind::InvalidData, "Signature Mismatch"));
+        }
+        Ok(content)
+    }
+}
+