diff --git a/src/Dictionary/AbstractDictionary.php b/src/Dictionary/AbstractDictionary.php
new file mode 100755
index 0000000..01477cd
--- /dev/null
+++ b/src/Dictionary/AbstractDictionary.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+abstract class AbstractDictionary implements DictionaryInterface
+{
+	protected const MAP = [];
+
+	protected static function getResult($data)
+	{
+		$implements = class_implements(static::class) ?: [];
+
+		$options = [];
+
+		if (!!$implements[TitleAwareInterface::class])
+		{
+			$options['title'] = $data['title'] ?? null;
+		}
+
+		if (!!$implements[OIDAwareInterface::class])
+		{
+			$options['OID'] = $data['OID'] ?? null;
+		}
+
+		if (!!$implements[RDNAwareInterface::class])
+		{
+			$options['RDN'] = $data['RDN'] ?? null;
+		}
+
+		return DictionaryItem::getItem($options);
+	}
+}
\ No newline at end of file
diff --git a/src/Dictionary/DescriptionAwareInterface.php b/src/Dictionary/DescriptionAwareInterface.php
new file mode 100755
index 0000000..08a826c
--- /dev/null
+++ b/src/Dictionary/DescriptionAwareInterface.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+interface DescriptionAwareInterface
+{
+
+}
\ No newline at end of file
diff --git a/src/Dictionary/DictionaryInterface.php b/src/Dictionary/DictionaryInterface.php
new file mode 100755
index 0000000..1682d87
--- /dev/null
+++ b/src/Dictionary/DictionaryInterface.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+interface DictionaryInterface
+{
+
+}
\ No newline at end of file
diff --git a/src/Dictionary/DictionaryItem.php b/src/Dictionary/DictionaryItem.php
new file mode 100755
index 0000000..78e3998
--- /dev/null
+++ b/src/Dictionary/DictionaryItem.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+abstract class DictionaryItem
+{
+	protected $options;
+
+	protected function __construct(array $options)
+	{
+		$this->options = $options;
+	}
+
+	public function __get($name)
+	{
+		if (!isset($this->options[$name]))
+		{
+			user_error("Can't set property: " . __CLASS__ . "->" . $name);
+		}
+
+		return $this->options[$name];
+	}
+
+	public function __set($name, $value)
+	{
+		user_error("Can't set property: " . __CLASS__ . "->" . $name);
+	}
+
+	public static function getItem(array $options)
+	{
+		return new class($options) extends DictionaryItem {
+		};
+	}
+}
\ No newline at end of file
diff --git a/src/Dictionary/IssuerTagsDictionary.php b/src/Dictionary/IssuerTagsDictionary.php
new file mode 100755
index 0000000..abdf4c0
--- /dev/null
+++ b/src/Dictionary/IssuerTagsDictionary.php
@@ -0,0 +1,104 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+class IssuerTagsDictionary extends AbstractDictionary implements RDNAwareInterface, TitleAwareInterface, OIDAwareInterface
+{
+	use RDNAwareTrait;
+	use TitleAwareTrait;
+	use OIDAwareTrait;
+
+	protected const MAP
+		= [
+			[
+				'RDN'            => 'UN',
+				'OID'            => '1.2.840.113549.1.9.2',
+				'title'          => 'Неструктурированное имя',
+				'title_variants' => ['unstructuredName'],
+			],
+			[
+				'RDN'            => 'CN',
+				'OID'            => '2.5.4.3',
+				'title'          => 'Удостоверяющий центр',
+				'title_variants' => ['commonName'],
+			],
+			[
+				'RDN'            => 'C',
+				'OID'            => '2.5.4.6',
+				'title'          => 'Страна',
+				'title_variants' => ['countryName'],
+			],
+			[
+				'RDN'            => 'S',
+				'OID'            => '2.5.4.8',
+				'title'          => 'Регион',
+				'title_variants' => ['ST', 'stateOrProvinceName'],
+			],
+			[
+				'RDN'            => 'STREET',
+				'OID'            => '2.5.4.9',
+				'title'          => 'Адрес',
+				'title_variants' => ['streetAddress'],
+			],
+			[
+				'RDN'            => 'O',
+				'OID'            => '2.5.4.10',
+				'title'          => 'Компания',
+				'title_variants' => ['organizationName'],
+			],
+			[
+				'RDN'            => 'OU',
+				'OID'            => '2.5.4.11',
+				'title'          => 'Тип',
+				'title_variants' => ['organizationalUnitName'],
+			],
+			[
+				'RDN'            => 'T',
+				'OID'            => '2.5.4.12',
+				'title'          => 'Должность',
+				'title_variants' => ['TITLE'],
+			],
+			[
+				'RDN'            => 'OGRN',
+				'OID'            => '1.2.643.100.1',
+				'title'          => 'ОГРН',
+				'title_variants' => ['ОГРН'],
+			],
+			[
+				'RDN'            => 'OGRNIP',
+				'OID'            => '1.2.643.100.5',
+				'title'          => 'ОГРНИП',
+				'title_variants' => ['ОГРНИП'],
+			],
+			[
+				'RDN'            => 'SNILS',
+				'OID'            => '1.2.643.100.3',
+				'title'          => 'СНИЛС',
+				'title_variants' => ['СНИЛС'],
+			],
+			[
+				'RDN'            => 'INN',
+				'OID'            => '1.2.643.3.131.1.1',
+				'title'          => 'ИНН',
+				'title_variants' => ['ИННФЛ', 'ИНН ФЛ'],
+			],
+			[
+				'RDN'            => 'INNLE',
+				'OID'            => '1.2.643.100.4',
+				'title'          => 'ИНН организации',
+				'title_variants' => ['ИННЮЛ', 'ИНН ЮЛ', 'INN LE'],
+			],
+			[
+				'RDN'            => 'E',
+				'OID'            => '1.2.840.113549.1.9.1',
+				'title'          => 'Email',
+				'title_variants' => ['email', 'emailAddress', 'pkcs9email'],
+			],
+			[
+				'RDN'            => 'L',
+				'OID'            => '2.5.4.7',
+				'title'          => 'Город',
+				'title_variants' => ['localityName'],
+			],
+		];
+}
\ No newline at end of file
diff --git a/src/Dictionary/OIDAwareInterface.php b/src/Dictionary/OIDAwareInterface.php
new file mode 100755
index 0000000..01a7b4e
--- /dev/null
+++ b/src/Dictionary/OIDAwareInterface.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+interface OIDAwareInterface
+{
+	public static function getByOID(string $oid);
+}
\ No newline at end of file
diff --git a/src/Dictionary/OIDAwareTrait.php b/src/Dictionary/OIDAwareTrait.php
new file mode 100755
index 0000000..abe8561
--- /dev/null
+++ b/src/Dictionary/OIDAwareTrait.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+trait OIDAwareTrait
+{
+	public static function getByOID(string $oid)
+	{
+		$oid = mb_strtolower(trim($oid));
+
+		$map = self::getOIDMap();
+
+		return isset($map[$oid]) ? self::getResult($map[$oid]) : null;
+	}
+
+	protected static function getOIDMap()
+	{
+		static $OIDMap;
+
+		if (!isset($OIDMap))
+		{
+			foreach (self::MAP as $row)
+			{
+				if (isset($row['OID']))
+				{
+					$variant          = mb_strtolower($row['OID']);
+					$OIDMap[$variant] = $row;
+				}
+			}
+		}
+
+		return $OIDMap;
+	}
+}
\ No newline at end of file
diff --git a/src/Dictionary/RDNAwareInterface.php b/src/Dictionary/RDNAwareInterface.php
new file mode 100755
index 0000000..d85b323
--- /dev/null
+++ b/src/Dictionary/RDNAwareInterface.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+interface RDNAwareInterface
+{
+	public static function getByRDN(string $RDN);
+}
\ No newline at end of file
diff --git a/src/Dictionary/RDNAwareTrait.php b/src/Dictionary/RDNAwareTrait.php
new file mode 100755
index 0000000..70b5a07
--- /dev/null
+++ b/src/Dictionary/RDNAwareTrait.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+trait RDNAwareTrait
+{
+	public static function getByRDN(string $RDN)
+	{
+		$RDN = mb_strtolower(trim($RDN));
+
+		$map = self::getRDNMap();
+
+		return isset($map[$RDN]) ? self::getResult($map[$RDN]) : null;
+	}
+
+	protected static function getRDNMap()
+	{
+		static $RDNMap;
+
+		if (!isset($RDNMap))
+		{
+			foreach (self::MAP as $row)
+			{
+				if (isset($row['RDN']))
+				{
+					$variant          = mb_strtolower($row['RDN']);
+					$RDNMap[$variant] = $row;
+				}
+			}
+		}
+
+		return $RDNMap;
+	}
+}
\ No newline at end of file
diff --git a/src/Dictionary/SubjectTagsDictionary.php b/src/Dictionary/SubjectTagsDictionary.php
new file mode 100755
index 0000000..a717ac3
--- /dev/null
+++ b/src/Dictionary/SubjectTagsDictionary.php
@@ -0,0 +1,116 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+class SubjectTagsDictionary extends AbstractDictionary implements RDNAwareInterface, TitleAwareInterface, OIDAwareInterface
+{
+	use RDNAwareTrait;
+	use TitleAwareTrait;
+	use OIDAwareTrait;
+
+	protected const MAP
+		= [
+			[
+				'RDN'            => 'UN',
+				'OID'            => '1.2.840.113549.1.9.2',
+				'title'          => 'Неструктурированное имя',
+				'title_variants' => ['unstructuredName'],
+			],
+			[
+				'RDN'            => 'CN',
+				'OID'            => '2.5.4.3',
+				'title'          => 'Владелец',
+				'title_variants' => ['commonName'],
+			],
+			[
+				'RDN'            => 'SN',
+				'OID'            => '2.5.4.4',
+				'title'          => 'Фамилия',
+				'title_variants' => ['surname'],
+			],
+			[
+				'RDN'            => 'G',
+				'OID'            => '2.5.4.42',
+				'title'          => 'Имя Отчество',
+				'title_variants' => ['givenName', 'gn'],
+			],
+			[
+				'RDN'            => 'C',
+				'OID'            => '2.5.4.6',
+				'title'          => 'Страна',
+				'title_variants' => ['countryName'],
+			],
+			[
+				'RDN'            => 'S',
+				'OID'            => '2.5.4.8',
+				'title'          => 'Регион',
+				'title_variants' => ['ST', 'stateOrProvinceName'],
+			],
+			[
+				'RDN'            => 'STREET',
+				'OID'            => '2.5.4.9',
+				'title'          => 'Адрес',
+				'title_variants' => ['streetAddress'],
+			],
+			[
+				'RDN'            => 'O',
+				'OID'            => '2.5.4.10',
+				'title'          => 'Компания',
+				'title_variants' => ['organizationName'],
+			],
+			[
+				'RDN'            => 'OU',
+				'OID'            => '2.5.4.11',
+				'title'          => 'Отдел/подразделение',
+				'title_variants' => ['organizationalUnitName'],
+			],
+			[
+				'RDN'            => 'T',
+				'OID'            => '2.5.4.12',
+				'title'          => 'Должность',
+				'title_variants' => ['TITLE'],
+			],
+			[
+				'RDN'            => 'OGRN',
+				'OID'            => '1.2.643.100.1',
+				'title'          => 'ОГРН',
+				'title_variants' => ['ОГРН'],
+			],
+			[
+				'RDN'            => 'OGRNIP',
+				'OID'            => '1.2.643.100.5',
+				'title'          => 'ОГРНИП',
+				'title_variants' => ['ОГРНИП'],
+			],
+			[
+				'RDN'            => 'SNILS',
+				'OID'            => '1.2.643.100.3',
+				'title'          => 'СНИЛС',
+				'title_variants' => ['СНИЛС'],
+			],
+			[
+				'RDN'            => 'INN',
+				'OID'            => '1.2.643.3.131.1.1',
+				'title'          => 'ИНН',
+				'title_variants' => ['ИННФЛ', 'ИНН ФЛ'],
+			],
+			[
+				'RDN'            => 'INNLE',
+				'OID'            => '1.2.643.100.4',
+				'title'          => 'ИНН организации',
+				'title_variants' => ['ИННЮЛ', 'ИНН ЮЛ', 'INN LE'],
+			],
+			[
+				'RDN'            => 'E',
+				'OID'            => '1.2.840.113549.1.9.1',
+				'title'          => 'Email',
+				'title_variants' => ['email', 'emailAddress', 'pkcs9email'],
+			],
+			[
+				'RDN'            => 'L',
+				'OID'            => '2.5.4.7',
+				'title'          => 'Город',
+				'title_variants' => ['localityName'],
+			],
+		];
+}
\ No newline at end of file
diff --git a/src/Dictionary/TitleAwareInterface.php b/src/Dictionary/TitleAwareInterface.php
new file mode 100755
index 0000000..5ce0a6c
--- /dev/null
+++ b/src/Dictionary/TitleAwareInterface.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+interface TitleAwareInterface
+{
+	public static function getByTitle(string $title);
+}
\ No newline at end of file
diff --git a/src/Dictionary/TitleAwareTrait.php b/src/Dictionary/TitleAwareTrait.php
new file mode 100755
index 0000000..9f58c60
--- /dev/null
+++ b/src/Dictionary/TitleAwareTrait.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Webmasterskaya\CryptoPro\Dictionary;
+
+trait TitleAwareTrait
+{
+	public static function getByTitle(string $title)
+	{
+		$title = mb_strtolower(trim($title));
+
+		$map = self::getTitleMap();
+
+		return isset($map[$title]) ? self::getResult($map[$title]) : null;
+	}
+
+	protected static function getTitleMap()
+	{
+		static $titleMap;
+
+		if (!isset($titleMap))
+		{
+			foreach (self::MAP as $row)
+			{
+				if (isset($row['title_variants']))
+				{
+					if (is_string($row['title_variants']))
+					{
+						$variant            = mb_strtolower($row['title_variants']);
+						$titleMap[$variant] = $row;
+					}
+					else
+					{
+						foreach ($row['title_variants'] as $variant)
+						{
+							$variant            = mb_strtolower($variant);
+							$titleMap[$variant] = $row;
+						}
+					}
+				}
+
+				if (isset($row['title']))
+				{
+					$variant            = mb_strtolower($row['title']);
+					$titleMap[$variant] = $row;
+				}
+
+				if (isset($row['RDN']))
+				{
+					$variant            = mb_strtolower($row['RDN']);
+					$titleMap[$variant] = $row;
+				}
+			}
+		}
+
+		return $titleMap;
+	}
+}
\ No newline at end of file