diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json
index a19dcef..b81562c 100644
--- a/.cargo_vcs_info.json
+++ b/.cargo_vcs_info.json
@@ -1,5 +1,5 @@
 {
   "git": {
-    "sha1": "8c8e7a47c7728b3ff6e6bf91bcc54d6acd9eeca5"
+    "sha1": "e81f1f2dd19b765c9a034dda316c5814ff97d157"
   }
 }
diff --git a/Android.bp b/Android.bp
index 6d64e30..5239816 100644
--- a/Android.bp
+++ b/Android.bp
@@ -42,7 +42,7 @@
     host_supported: true,
     crate_name: "x509_parser",
     cargo_env_compat: true,
-    cargo_pkg_version: "0.10.0",
+    cargo_pkg_version: "0.12.0",
     srcs: ["src/lib.rs"],
     edition: "2018",
     features: ["default"],
diff --git a/CHANGELOG.md b/CHANGELOG.md
index dfcd92a..bc402dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,30 @@
 
 ### Thanks
 
+## 0.12.0
+
+### Added/Changed/Fixed
+
+- Upgrade to nom 7
+
+## 0.11.0
+
+### Added
+
+- Add SubjectPublicKeyInfo::raw field
+
+### Changed/Fixed
+
+- Fix der-parser dependency (#102)
+- Update oid-registry dependency (#77)
+- Set MSRV to 1.46 (indirect dependency on lexical-core and bitvec)
+- Extend the lifetimes exposed on TbsCertificate (#104)
+- Add missing test assets (#103)
+
+### Thanks
+
+- @jgalenson, @g2p, @kpp
+
 ## 0.10.0
 
 ### Added
diff --git a/Cargo.toml b/Cargo.toml
index 36bb744..bd75632 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,19 +3,18 @@
 # When uploading crates to the registry Cargo will automatically
 # "normalize" Cargo.toml files for maximal compatibility
 # with all versions of Cargo and also rewrite `path` dependencies
-# to registry (e.g., crates.io) dependencies
+# to registry (e.g., crates.io) dependencies.
 #
-# If you believe there's an error in this file please file an
-# issue against the rust-lang/cargo repository. If you're
-# editing this file be aware that the upstream Cargo.toml
-# will likely look very different (and much more reasonable)
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
 
 [package]
 edition = "2018"
 name = "x509-parser"
-version = "0.10.0"
+version = "0.12.0"
 authors = ["Pierre Chifflier <chifflier@wzdftpd.net>"]
-include = ["CHANGELOG.md", "LICENSE-*", "README.md", ".gitignore", ".travis.yml", "Cargo.toml", "src/*.rs", "tests/*.rs", "assets/*.der", "assets/*.pem", "examples/*.rs"]
+include = ["CHANGELOG.md", "LICENSE-*", "README.md", ".gitignore", ".travis.yml", "Cargo.toml", "src/*.rs", "tests/*.rs", "assets/*.crl", "assets/*.csr", "assets/*.der", "assets/*.pem", "assets/crl-ext/*.der", "examples/*.rs"]
 description = "Parser for the X.509 v3 format (RFC 5280 certificates)"
 homepage = "https://github.com/rusticata/x509-parser"
 readme = "README.md"
@@ -38,17 +37,17 @@
 version = "2.2.1"
 
 [dependencies.der-parser]
-version = "5.1"
+version = "6.0.0"
 features = ["bigint"]
 
 [dependencies.lazy_static]
 version = "1.4"
 
 [dependencies.nom]
-version = "6.0"
+version = "7.0"
 
 [dependencies.oid-registry]
-version = "0.1.1"
+version = "0.2.0"
 features = ["crypto", "x509"]
 
 [dependencies.ring]
@@ -56,7 +55,7 @@
 optional = true
 
 [dependencies.rusticata-macros]
-version = "3.0"
+version = "4.0"
 
 [dependencies.thiserror]
 version = "1.0"
diff --git a/Cargo.toml.orig b/Cargo.toml.orig
index 0833677..bd19297 100644
--- a/Cargo.toml.orig
+++ b/Cargo.toml.orig
@@ -1,6 +1,6 @@
 [package]
 name = "x509-parser"
-version = "0.10.0"
+version = "0.12.0"
 description = "Parser for the X.509 v3 format (RFC 5280 certificates)"
 license = "MIT/Apache-2.0"
 keywords = ["X509","Certificate","parser","nom"]
@@ -20,8 +20,11 @@
   "Cargo.toml",
   "src/*.rs",
   "tests/*.rs",
+  "assets/*.crl",
+  "assets/*.csr",
   "assets/*.der",
   "assets/*.pem",
+  "assets/crl-ext/*.der",
   "examples/*.rs"
 ]
 
@@ -39,9 +42,9 @@
 chrono = { version="0.4", default-features=false, features=["std"] }
 data-encoding = "2.2.1"
 lazy_static = "1.4"
-nom = "6.0"
-oid-registry = { version="0.1.1", features=["crypto", "x509"] }
-rusticata-macros = "3.0"
+nom = "7.0"
+oid-registry = { version="0.2.0", features=["crypto", "x509"] }
+rusticata-macros = "4.0"
 ring = { version="0.16", optional=true }
-der-parser = { version = "5.1", features=["bigint"] }
+der-parser = { version = "6.0.0", features=["bigint"] }
 thiserror = "1.0"
diff --git a/METADATA b/METADATA
index 4d6197c..ab1ae51 100644
--- a/METADATA
+++ b/METADATA
@@ -7,13 +7,13 @@
   }
   url {
     type: ARCHIVE
-    value: "https://static.crates.io/crates/x509-parser/x509-parser-0.10.0.crate"
+    value: "https://static.crates.io/crates/x509-parser/x509-parser-0.12.0.crate"
   }
-  version: "0.10.0"
+  version: "0.12.0"
   license_type: NOTICE
   last_upgrade_date {
     year: 2021
-    month: 8
-    day: 9
+    month: 9
+    day: 23
   }
 }
diff --git a/README.md b/README.md
index b6ffbeb..e6ad660 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 [![crates.io](https://img.shields.io/crates/v/x509-parser.svg)](https://crates.io/crates/x509-parser)
 [![Download numbers](https://img.shields.io/crates/d/x509-parser.svg)](https://crates.io/crates/x509-parser)
 [![Github CI](https://github.com/rusticata/x509-parser/workflows/Continuous%20integration/badge.svg)](https://github.com/rusticata/x509-parser/actions)
-[![Minimum rustc version](https://img.shields.io/badge/rustc-1.45.0+-lightgray.svg)](#rust-version-requirements)
+[![Minimum rustc version](https://img.shields.io/badge/rustc-1.46.0+-lightgray.svg)](#rust-version-requirements)
 
 # X.509 Parser
 
@@ -103,7 +103,7 @@
 
 ## Rust version requirements
 
-`x509-parser` requires **Rustc version 1.45 or greater**, based on nom 6
+`x509-parser` requires **Rustc version 1.46 or greater**, based on nom 7
 dependencies and for proc-macro attributes support.
 
 [RFC5280]: https://tools.ietf.org/html/rfc5280
diff --git a/assets/crl-ext/crl-complex.der b/assets/crl-ext/crl-complex.der
new file mode 100644
index 0000000..f5140f1
--- /dev/null
+++ b/assets/crl-ext/crl-complex.der
Binary files differ
diff --git a/assets/crl-ext/crl-no-crl.der b/assets/crl-ext/crl-no-crl.der
new file mode 100644
index 0000000..03f7357
--- /dev/null
+++ b/assets/crl-ext/crl-no-crl.der
Binary files differ
diff --git a/assets/crl-ext/crl-simple.der b/assets/crl-ext/crl-simple.der
new file mode 100644
index 0000000..224a743
--- /dev/null
+++ b/assets/crl-ext/crl-simple.der
Binary files differ
diff --git a/assets/csr-empty-attributes.csr b/assets/csr-empty-attributes.csr
new file mode 100644
index 0000000..bfb84c8
--- /dev/null
+++ b/assets/csr-empty-attributes.csr
Binary files differ
diff --git a/assets/empty.crl b/assets/empty.crl
new file mode 100644
index 0000000..fc3f6b3
--- /dev/null
+++ b/assets/empty.crl
Binary files differ
diff --git a/assets/example.crl b/assets/example.crl
new file mode 100644
index 0000000..3df0b6f
--- /dev/null
+++ b/assets/example.crl
Binary files differ
diff --git a/assets/minimal.crl b/assets/minimal.crl
new file mode 100644
index 0000000..32cd969
--- /dev/null
+++ b/assets/minimal.crl
Binary files differ
diff --git a/assets/test.csr b/assets/test.csr
new file mode 100644
index 0000000..729df67
--- /dev/null
+++ b/assets/test.csr
@@ -0,0 +1,8 @@
+-----BEGIN CERTIFICATE REQUEST-----
+MIIBBjCBrQIBADAcMRowGAYDVQQDDBF0ZXN0LnJ1c3RpY2F0YS5mcjBZMBMGByqG
+SM49AgEGCCqGSM49AwEHA0IABMP1frFxwJLXiLU6UoqOPf31ucCm2NqR2yqpcHo6
+W7iWJe31OzYs0izP2qeUvdKfz2fpAbuGiRjwvN+H10dQQEGgLzAtBgkqhkiG9w0B
+CQ4xIDAeMBwGA1UdEQQVMBOCEXRlc3QucnVzdGljYXRhLmZyMAoGCCqGSM49BAMC
+A0gAMEUCIGqQHPHgpeyZa5YMLP2X5IwfmrvpIcg5fQ2xkXotGAa0AiEAydeBwr4r
+Iu7XDe015h8uz8xZs2QUEgRdr73lJXTX+Ck=
+-----END CERTIFICATE REQUEST-----
diff --git a/patches/rustdoc.patch b/patches/rustdoc.patch
deleted file mode 100644
index d6ec591..0000000
--- a/patches/rustdoc.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-diff --git a/src/traits.rs b/src/traits.rs
-index bd4d070..aae96e5 100644
---- a/src/traits.rs
-+++ b/src/traits.rs
-@@ -5,7 +5,18 @@ use crate::error::X509Result;
- ///
- /// The returned object uses zero-copy, and so has the same lifetime as the input.
- ///
--/// Note that only parsing is done, not validation (see the [`Validate`](crate::validate::Validate) trait).
-+#[cfg_attr(
-+    feature = "validate",
-+    doc = r#"
-+Note that only parsing is done, not validation (see the [`Validate`](crate::validate::Validate) trait).
-+"#
-+)]
-+#[cfg_attr(
-+    not(feature = "validate"),
-+    doc = r#"
-+Note that only parsing is done, not validation.
-+"#
-+)]
- ///
- /// # Example
- ///
diff --git a/src/certificate.rs b/src/certificate.rs
index 1d937b1..b2f2c63 100644
--- a/src/certificate.rs
+++ b/src/certificate.rs
@@ -322,27 +322,27 @@
 impl<'a> TbsCertificate<'a> {
     /// Returns the certificate extensions
     #[inline]
-    pub fn extensions(&self) -> &[X509Extension] {
+    pub fn extensions(&self) -> &[X509Extension<'a>] {
         &self.extensions
     }
 
     /// Returns an iterator over the certificate extensions
     #[inline]
-    pub fn iter_extensions(&self) -> impl Iterator<Item = &X509Extension> {
+    pub fn iter_extensions(&self) -> impl Iterator<Item = &X509Extension<'a>> {
         self.extensions.iter()
     }
 
     /// Searches for an extension with the given `Oid`.
     ///
     /// Note: if there are several extensions with the same `Oid`, the first one is returned.
-    pub fn find_extension(&self, oid: &Oid) -> Option<&X509Extension> {
+    pub fn find_extension(&self, oid: &Oid) -> Option<&X509Extension<'a>> {
         self.extensions.iter().find(|&ext| ext.oid == *oid)
     }
 
     /// Builds and returns a map of extensions.
     ///
     /// If an extension is present twice, this will fail and return `DuplicateExtensions`.
-    pub fn extensions_map(&self) -> Result<HashMap<Oid, &X509Extension>, X509Error> {
+    pub fn extensions_map(&self) -> Result<HashMap<Oid, &X509Extension<'a>>, X509Error> {
         self.extensions
             .iter()
             .try_fold(HashMap::new(), |mut m, ext| {
@@ -370,7 +370,7 @@
             })
     }
 
-    pub fn extended_key_usage(&self) -> Option<(bool, &ExtendedKeyUsage)> {
+    pub fn extended_key_usage(&self) -> Option<(bool, &ExtendedKeyUsage<'a>)> {
         self.find_extension(&OID_X509_EXT_EXTENDED_KEY_USAGE)
             .and_then(|ext| match ext.parsed_extension {
                 ParsedExtension::ExtendedKeyUsage(ref eku) => Some((ext.critical, eku)),
@@ -394,7 +394,7 @@
             })
     }
 
-    pub fn policy_mappings(&self) -> Option<(bool, &PolicyMappings)> {
+    pub fn policy_mappings(&self) -> Option<(bool, &PolicyMappings<'a>)> {
         self.find_extension(&OID_X509_EXT_POLICY_MAPPINGS)
             .and_then(|ext| match ext.parsed_extension {
                 ParsedExtension::PolicyMappings(ref pm) => Some((ext.critical, pm)),
@@ -402,7 +402,7 @@
             })
     }
 
-    pub fn subject_alternative_name(&self) -> Option<(bool, &SubjectAlternativeName)> {
+    pub fn subject_alternative_name(&self) -> Option<(bool, &SubjectAlternativeName<'a>)> {
         self.find_extension(&OID_X509_EXT_SUBJECT_ALT_NAME)
             .and_then(|ext| match ext.parsed_extension {
                 ParsedExtension::SubjectAlternativeName(ref san) => Some((ext.critical, san)),
@@ -410,7 +410,7 @@
             })
     }
 
-    pub fn name_constraints(&self) -> Option<(bool, &NameConstraints)> {
+    pub fn name_constraints(&self) -> Option<(bool, &NameConstraints<'a>)> {
         self.find_extension(&OID_X509_EXT_NAME_CONSTRAINTS)
             .and_then(|ext| match ext.parsed_extension {
                 ParsedExtension::NameConstraints(ref nc) => Some((ext.critical, nc)),
@@ -426,7 +426,7 @@
     }
 
     /// Get the raw bytes of the certificate serial number
-    pub fn raw_serial(&self) -> &[u8] {
+    pub fn raw_serial(&self) -> &'a [u8] {
         self.raw_serial
     }
 
diff --git a/src/extensions.rs b/src/extensions.rs
index 6172d47..676cf04 100644
--- a/src/extensions.rs
+++ b/src/extensions.rs
@@ -10,7 +10,7 @@
 use der_parser::error::{BerError, BerResult};
 use der_parser::num_bigint::BigUint;
 use der_parser::oid::Oid;
-use nom::combinator::{all_consuming, complete, map, map_opt, map_res, opt};
+use nom::combinator::{all_consuming, complete, map, map_res, opt};
 use nom::multi::{many0, many1};
 use nom::{Err, IResult, Parser};
 use oid_registry::*;
@@ -1428,7 +1428,7 @@
     // CRLNumber ::= INTEGER (0..MAX)
     // Note from RFC 3280: "CRL verifiers MUST be able to handle CRLNumber values up to 20 octets."
     fn parse_crl_number(i: &[u8]) -> IResult<&[u8], ParsedExtension, BerError> {
-        let (rest, num) = map_opt(parse_der_integer, |obj| obj.as_biguint())(i)?;
+        let (rest, num) = map_res(parse_der_integer, |obj| obj.as_biguint())(i)?;
         Ok((rest, ParsedExtension::CRLNumber(num)))
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 7939c82..8bd14a9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -4,7 +4,7 @@
 //! [![crates.io](https://img.shields.io/crates/v/x509-parser.svg)](https://crates.io/crates/x509-parser)
 //! [![Download numbers](https://img.shields.io/crates/d/x509-parser.svg)](https://crates.io/crates/x509-parser)
 //! [![Github CI](https://github.com/rusticata/x509-parser/workflows/Continuous%20integration/badge.svg)](https://github.com/rusticata/x509-parser/actions)
-//! [![Minimum rustc version](https://img.shields.io/badge/rustc-1.45.0+-lightgray.svg)](#rust-version-requirements)
+//! [![Minimum rustc version](https://img.shields.io/badge/rustc-1.46.0+-lightgray.svg)](#rust-version-requirements)
 //!
 //! # X.509 Parser
 //!
@@ -109,7 +109,7 @@
 //!
 //! ## Rust version requirements
 //!
-//! `x509-parser` requires **Rustc version 1.45 or greater**, based on nom 6
+//! `x509-parser` requires **Rustc version 1.46 or greater**, based on nom 7
 //! dependencies and for proc-macro attributes support.
 //!
 //! [RFC5280]: https://tools.ietf.org/html/rfc5280
diff --git a/src/x509.rs b/src/x509.rs
index ecee084..95d1257 100644
--- a/src/x509.rs
+++ b/src/x509.rs
@@ -224,12 +224,15 @@
 pub struct SubjectPublicKeyInfo<'a> {
     pub algorithm: AlgorithmIdentifier<'a>,
     pub subject_public_key: BitStringObject<'a>,
+    /// A raw unparsed PKIX, ASN.1 DER form (see RFC 5280, Section 4.1).
+    pub raw: &'a [u8],
 }
 
 impl<'a> FromDer<'a> for SubjectPublicKeyInfo<'a> {
     /// Parse the SubjectPublicKeyInfo struct portion of a DER-encoded X.509 Certificate
     fn from_der(i: &'a [u8]) -> X509Result<Self> {
-        parse_der_sequence_defined_g(|i, _| {
+        let start_i = i;
+        parse_der_sequence_defined_g(move |i, _| {
             let (i, algorithm) = AlgorithmIdentifier::from_der(i)?;
             let (i, subject_public_key) = map_res(parse_der_bitstring, |x: DerObject<'a>| {
                 match x.content {
@@ -238,9 +241,12 @@
                 }
             })(i)
             .or(Err(X509Error::InvalidSPKI))?;
+            let len = start_i.offset(i);
+            let raw = &start_i[..len];
             let spki = SubjectPublicKeyInfo {
                 algorithm,
                 subject_public_key,
+                raw,
             };
             Ok((i, spki))
         })(i)
diff --git a/tests/test01.rs b/tests/test01.rs
index 1559888..45c0dca 100644
--- a/tests/test01.rs
+++ b/tests/test01.rs
@@ -1,5 +1,4 @@
-#[macro_use]
-extern crate nom;
+use nom::bytes::complete::take;
 
 #[test]
 fn test01() {
@@ -7,13 +6,11 @@
     let _ = x509_parser::parse_x509_certificate(data);
 }
 
-named!(parser02<&[u8],()>,
-    do_parse!(
-        _hdr: take!(1) >>
-        _data: take!(18_446_744_073_709_551_615) >>
-        ( () )
-    )
-);
+fn parser02(input: &[u8]) -> nom::IResult<&[u8], ()> {
+    let (_hdr, input) = take(1_usize)(input)?;
+    let (_data, input) = take(18_446_744_073_709_551_615_usize)(input)?;
+    Ok((input, ()))
+}
 
 #[test]
 fn test02() {