CWE-327
Allowed-with-ReviewUse of a Broken or Risky Cryptographic Algorithm
Abstraction: Class · Status: Draft
The product uses a broken or risky cryptographic algorithm or protocol.
960 vulnerabilities reference this CWE, most recent first.
GHSA-JJ93-39PF-7MCF
Vulnerability from github – Published: 2023-12-21 12:30 – Updated: 2024-01-02 15:15An issue was discovered in the bsock component of bcoin-org bcoin that allows remote attackers to obtain sensitive information via weak hashing algorithms in the component \vendor\faye-websocket.js.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "bsock"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.1.11"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-50475"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": true,
"github_reviewed_at": "2023-12-21T18:13:09Z",
"nvd_published_at": "2023-12-21T11:15:08Z",
"severity": "CRITICAL"
},
"details": "An issue was discovered in the bsock component of bcoin-org bcoin that allows remote attackers to obtain sensitive information via weak hashing algorithms in the component `\\vendor\\faye-websocket.js`.",
"id": "GHSA-jj93-39pf-7mcf",
"modified": "2024-01-02T15:15:18Z",
"published": "2023-12-21T12:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50475"
},
{
"type": "WEB",
"url": "https://github.com/bcoin-org/bcoin/issues/1174"
},
{
"type": "PACKAGE",
"url": "https://github.com/bcoin-org/bcoin"
},
{
"type": "WEB",
"url": "https://github.com/bcoin-org/bcoin/blob/master/node_modules/bsock/package.json"
},
{
"type": "WEB",
"url": "https://github.com/bcoin-org/bsock/blob/master/package.json"
},
{
"type": "WEB",
"url": "https://github.com/tianjk99/Cryptographic-Misuses/blob/main/CVE-2023-50475.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "bsock uses weak hashing algorithms"
}
GHSA-JJMC-4P83-PP26
Vulnerability from github – Published: 2022-05-24 19:14 – Updated: 2023-08-09 13:17A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-sdk2 (aka Matrix SDK for Android) before 1.2.2 leads to a situation where identity verification is inadequate and thus a key-requesting device can be impersonated.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.matrix.android:matrix-android-sdk2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.2.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-40824"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": true,
"github_reviewed_at": "2023-08-09T13:17:07Z",
"nvd_published_at": "2021-09-13T19:15:00Z",
"severity": "MODERATE"
},
"details": "A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-sdk2 (aka Matrix SDK for Android) before 1.2.2 leads to a situation where identity verification is inadequate and thus a key-requesting device can be impersonated.",
"id": "GHSA-jjmc-4p83-pp26",
"modified": "2023-08-09T13:17:07Z",
"published": "2022-05-24T19:14:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-40824"
},
{
"type": "WEB",
"url": "https://github.com/matrix-org/matrix-android-sdk2/releases/tag/v1.2.2"
},
{
"type": "WEB",
"url": "https://matrix.org/blog/2021/09/13/vulnerability-disclosure-key-sharing"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Logic error in Matrix SDK for Android"
}
GHSA-JMX5-5G59-G2RW
Vulnerability from github – Published: 2024-02-02 00:31 – Updated: 2025-08-07 21:31Gessler GmbH WEB-MASTER user account is stored using a weak hashing algorithm. The attacker can restore the passwords by breaking the hashes stored on the device.
{
"affected": [],
"aliases": [
"CVE-2024-1040"
],
"database_specific": {
"cwe_ids": [
"CWE-327",
"CWE-328"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-01T22:15:55Z",
"severity": "MODERATE"
},
"details": "Gessler GmbH WEB-MASTER user account is stored using a weak hashing algorithm. The attacker can restore the passwords by breaking the hashes stored on the device.",
"id": "GHSA-jmx5-5g59-g2rw",
"modified": "2025-08-07T21:31:03Z",
"published": "2024-02-02T00:31:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1040"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-032-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JQWG-PP3J-9WVJ
Vulnerability from github – Published: 2024-12-13 15:30 – Updated: 2024-12-13 15:30Dell RecoverPoint for VMs, version(s) 6.0.x contain(s) a Use of a Broken or Risky Cryptographic Algorithm vulnerability in the SSH. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Remote execution.
{
"affected": [],
"aliases": [
"CVE-2024-28980"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-13T15:15:26Z",
"severity": "MODERATE"
},
"details": "Dell RecoverPoint for VMs, version(s) 6.0.x contain(s) a Use of a Broken or Risky Cryptographic Algorithm vulnerability in the SSH. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Remote execution.",
"id": "GHSA-jqwg-pp3j-9wvj",
"modified": "2024-12-13T15:30:43Z",
"published": "2024-12-13T15:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-28980"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/en-us/000259765/dsa-2024-429-security-update-for-dell-recoverpoint-for-virtual-machines-multiple-third-party-component-vulnerabilities"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JR67-68PW-5XQF
Vulnerability from github – Published: 2021-12-26 00:00 – Updated: 2022-07-26 00:00In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.
{
"affected": [],
"aliases": [
"CVE-2021-45486"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-25T02:15:00Z",
"severity": "MODERATE"
},
"details": "In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.",
"id": "GHSA-jr67-68pw-5xqf",
"modified": "2022-07-26T00:00:37Z",
"published": "2021-12-26T00:00:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45486"
},
{
"type": "WEB",
"url": "https://arxiv.org/pdf/2112.09604.pdf"
},
{
"type": "WEB",
"url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/net/ipv4/route.c?id=aa6dd211e4b1dde9d5dc25d699d35f789ae7eeba"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2022.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JRWR-H52H-9HH6
Vulnerability from github – Published: 2026-06-04 12:30 – Updated: 2026-06-04 12:30A weakness has been identified in PaddlePaddle FastDeploy up to 2.4.1. Affected by this issue is the function hash_features of the file fastdeploy/multimodal/hasher.py of the component MultimodalHasher. Executing a manipulation can lead to use of weak hash. The attack requires local access. A high complexity level is associated with this attack. The exploitation is known to be difficult. This patch is called 374945747652a8d32965591c0c01a00c88b7067f. Applying a patch is advised to resolve this issue.
{
"affected": [],
"aliases": [
"CVE-2026-10800"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-04T10:16:38Z",
"severity": "LOW"
},
"details": "A weakness has been identified in PaddlePaddle FastDeploy up to 2.4.1. Affected by this issue is the function hash_features of the file fastdeploy/multimodal/hasher.py of the component MultimodalHasher. Executing a manipulation can lead to use of weak hash. The attack requires local access. A high complexity level is associated with this attack. The exploitation is known to be difficult. This patch is called 374945747652a8d32965591c0c01a00c88b7067f. Applying a patch is advised to resolve this issue.",
"id": "GHSA-jrwr-h52h-9hh6",
"modified": "2026-06-04T12:30:25Z",
"published": "2026-06-04T12:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10800"
},
{
"type": "WEB",
"url": "https://github.com/PaddlePaddle/FastDeploy/issues/7196"
},
{
"type": "WEB",
"url": "https://github.com/PaddlePaddle/FastDeploy/pull/7185"
},
{
"type": "WEB",
"url": "https://github.com/PaddlePaddle/FastDeploy/commit/374945747652a8d32965591c0c01a00c88b7067f"
},
{
"type": "WEB",
"url": "https://github.com/PaddlePaddle/FastDeploy"
},
{
"type": "WEB",
"url": "https://vuldb.com/cve/CVE-2026-10800"
},
{
"type": "WEB",
"url": "https://vuldb.com/submit/831452"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/368249"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/368249/cti"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-JWMQ-HW4P-5V3P
Vulnerability from github – Published: 2022-12-22 21:30 – Updated: 2022-12-29 18:30IBM Security Verify Governance, Identity Manager 10.0.1 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 225007.
{
"affected": [],
"aliases": [
"CVE-2022-22461"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-22T20:15:00Z",
"severity": "HIGH"
},
"details": "IBM Security Verify Governance, Identity Manager 10.0.1 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 225007.",
"id": "GHSA-jwmq-hw4p-5v3p",
"modified": "2022-12-29T18:30:25Z",
"published": "2022-12-22T21:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22461"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/225077"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/6850845"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-M2RV-R87H-2V59
Vulnerability from github – Published: 2026-03-28 00:31 – Updated: 2026-03-28 00:31Ubiquiti UniFi Network Controller prior to 5.10.12 (excluding 5.6.42), UAP FW prior to 4.0.6, UAP-AC, UAP-AC v2, and UAP-AC Outdoor FW prior to 3.8.17, USW FW prior to 4.0.6, USG FW prior to 4.4.34 uses AES-CBC encryption for device-to-controller communication, which contains cryptographic weaknesses that allow attackers to recover encryption keys from captured traffic. Attackers with adjacent network access can capture sufficient encrypted traffic and exploit AES-CBC mode vulnerabilities to derive the encryption keys, enabling unauthorized control and management of network devices.
{
"affected": [],
"aliases": [
"CVE-2019-25651"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-27T22:16:19Z",
"severity": "HIGH"
},
"details": "Ubiquiti UniFi Network Controller prior to 5.10.12 (excluding 5.6.42), UAP FW prior to 4.0.6, UAP-AC, UAP-AC v2, and UAP-AC Outdoor FW prior to 3.8.17, USW FW prior to 4.0.6, USG FW prior to 4.4.34 uses AES-CBC encryption for device-to-controller communication, which contains cryptographic weaknesses that allow attackers to recover encryption keys from captured traffic. Attackers with adjacent network access can capture sufficient encrypted traffic and exploit AES-CBC mode vulnerabilities to derive the encryption keys, enabling unauthorized control and management of network devices.",
"id": "GHSA-m2rv-r87h-2v59",
"modified": "2026-03-28T00:31:15Z",
"published": "2026-03-28T00:31:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-25651"
},
{
"type": "WEB",
"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-004-004/462e561b-9efd-4c23-bfa7-53d59cc64ecb"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/ubiquiti-unifi-devices-use-of-aes-cbc-allows-key-recovery-and-unauthorized-device-control"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-M3C3-22WF-38MV
Vulnerability from github – Published: 2022-05-13 01:21 – Updated: 2022-05-13 01:21An information disclosure vulnerability exists when the Windows TCP/IP stack improperly handles fragmented IP packets, aka 'Windows TCP/IP Information Disclosure Vulnerability'.
{
"affected": [],
"aliases": [
"CVE-2019-0688"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-04-09T21:29:00Z",
"severity": "HIGH"
},
"details": "An information disclosure vulnerability exists when the Windows TCP/IP stack improperly handles fragmented IP packets, aka \u0027Windows TCP/IP Information Disclosure Vulnerability\u0027.",
"id": "GHSA-m3c3-22wf-38mv",
"modified": "2022-05-13T01:21:29Z",
"published": "2022-05-13T01:21:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-0688"
},
{
"type": "WEB",
"url": "https://arxiv.org/pdf/1906.10478.pdf"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0688"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107685"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-M4VJ-PG5W-VHQ6
Vulnerability from github – Published: 2024-07-15 03:30 – Updated: 2024-07-15 03:30IBM Datacap Navigator 9.1.5, 9.1.6, 9.1.7, 9.1.8, and 9.1.9 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 295970.
{
"affected": [],
"aliases": [
"CVE-2024-39731"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-15T02:15:05Z",
"severity": "MODERATE"
},
"details": "IBM Datacap Navigator 9.1.5, 9.1.6, 9.1.7, 9.1.8, and 9.1.9 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 295970.",
"id": "GHSA-m4vj-pg5w-vhq6",
"modified": "2024-07-15T03:30:57Z",
"published": "2024-07-15T03:30:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39731"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/295970"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7160185"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-24
Strategy: Libraries or Frameworks
- When there is a need to store or transmit sensitive data, use strong, up-to-date cryptographic algorithms to encrypt that data. Select a well-vetted algorithm that is currently considered to be strong by experts in the field, and use well-tested implementations. As with all cryptographic mechanisms, the source code should be available for analysis.
- For example, US government systems require FIPS 140-2 certification [REF-1192].
- Do not develop custom or private cryptographic algorithms. They will likely be exposed to attacks that are well-understood by cryptographers. Reverse engineering techniques are mature. If the algorithm can be compromised if attackers find out how it works, then it is especially weak.
- Periodically ensure that the cryptography has not become obsolete. Some older algorithms, once thought to require a billion years of computing time, can now be broken in days or hours. This includes MD4, MD5, SHA1, DES, and other algorithms that were once regarded as strong. [REF-267]
Mitigation MIT-52
Ensure that the design allows one cryptographic algorithm to be replaced with another in the next generation or version. Where possible, use wrappers to make the interfaces uniform. This will make it easier to upgrade to stronger algorithms. With hardware, design the product at the Intellectual Property (IP) level so that one cryptographic algorithm can be replaced with another in the next generation of the hardware product.
Mitigation
Carefully manage and protect cryptographic keys (see CWE-320). If the keys can be guessed or stolen, then the strength of the cryptography itself is irrelevant.
Mitigation MIT-4
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
- Industry-standard implementations will save development time and may be more likely to avoid errors that can occur during implementation of cryptographic algorithms. Consider the ESAPI Encryption feature.
Mitigation MIT-25
When using industry-approved techniques, use them correctly. Don't cut corners by skipping resource-intensive steps (CWE-325). These steps are often essential for preventing common attacks.
CAPEC-20: Encryption Brute Forcing
An attacker, armed with the cipher text and the encryption algorithm used, performs an exhaustive (brute force) search on the key space to determine the key that decrypts the cipher text to obtain the plaintext.
CAPEC-459: Creating a Rogue Certification Authority Certificate
An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.
CAPEC-473: Signature Spoof
An attacker generates a message or datablock that causes the recipient to believe that the message or datablock was generated and cryptographically signed by an authoritative or reputable source, misleading a victim or victim operating system into performing malicious actions.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.
CAPEC-608: Cryptanalysis of Cellular Encryption
The use of cryptanalytic techniques to derive cryptographic keys or otherwise effectively defeat cellular encryption to reveal traffic content. Some cellular encryption algorithms such as A5/1 and A5/2 (specified for GSM use) are known to be vulnerable to such attacks and commercial tools are available to execute these attacks and decrypt mobile phone conversations in real-time. Newer encryption algorithms in use by UMTS and LTE are stronger and currently believed to be less vulnerable to these types of attacks. Note, however, that an attacker with a Cellular Rogue Base Station can force the use of weak cellular encryption even by newer mobile devices.
CAPEC-614: Rooting SIM Cards
SIM cards are the de facto trust anchor of mobile devices worldwide. The cards protect the mobile identity of subscribers, associate devices with phone numbers, and increasingly store payment credentials, for example in NFC-enabled phones with mobile wallets. This attack leverages over-the-air (OTA) updates deployed via cryptographically-secured SMS messages to deliver executable code to the SIM. By cracking the DES key, an attacker can send properly signed binary SMS messages to a device, which are treated as Java applets and are executed on the SIM. These applets are allowed to send SMS, change voicemail numbers, and query the phone location, among many other predefined functions. These capabilities alone provide plenty of potential for abuse.
CAPEC-97: Cryptanalysis
Cryptanalysis is a process of finding weaknesses in cryptographic algorithms and using these weaknesses to decipher the ciphertext without knowing the secret key (instance deduction). Sometimes the weakness is not in the cryptographic algorithm itself, but rather in how it is applied that makes cryptanalysis successful. An attacker may have other goals as well, such as: Total Break (finding the secret key), Global Deduction (finding a functionally equivalent algorithm for encryption and decryption that does not require knowledge of the secret key), Information Deduction (gaining some information about plaintexts or ciphertexts that was not previously known) and Distinguishing Algorithm (the attacker has the ability to distinguish the output of the encryption (ciphertext) from a random permutation of bits).