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SwiftOTP is a pure Swift library for generating One Time Passwords (OTP) commonly used for two factor authentication. SwiftOTP supports both HMAC-Based One Time Passwords (HOTP) and Time Based One Time Passwords (TOTP) defined in RFC 4226 and RFC 6238 respectively.

Installation

SwiftOTP is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod'SwiftOTP'

Then run pod install in the project directory to install.

Usage

TOTP (Time-Based One Time Password)

Creation of a TOTP Object:

lettotp=TOTP(secret: data)!

A TOTP Object can be created with the default settings (6 digits, 30sec time interval and using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lettotp=TOTP(secret: data, digits:6, timeInterval:30, algorithm:.sha1)!

Generating TOTP Passwords

After creating a TOTP object, a password can be generated for a point in time, either by using a Date object or a Unix time value using the generate() function

For example, to get a password for the current time using a TOTP object named totp:

totp.generate(time: Date)

Or from Unix time (i.e. seconds elapsed since 00:00 1 Jan 1970):

totp.generate(secondsPast1970:1234567890)

Note: only Int values are accepted by this function.

HOTP (HMAC-Based One Time Password)

In addition to TOTP, SwiftOTP also supports the generation of counter-based HOTP passwords.

Creation of an HOTP Object:

lethotp=HOTP(secret: data)!

A HOTP Object can be created with the default settings (6 digits, using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lethotp=HOTP(secret: data, digits:6, algorithm:.sha1)!

Generating HOTP Passwords

After creating a TOTP object, a password can be generated for a counter value by using the generate() function, for example (where hotp is a HOTP object):

hotp.generate(counter:42)

Base32

Most secret keys for generating one time passwords use Base32 encoding. As such, SwiftOTP includes a Base32 Helper to decode a Base32 string into Data.

For example:

base32DecodeToData("ABCDEFGHIJKLMNOP")!

Or in use:

letdata=base32DecodeToData("ABCDEFGHIJKLMNOP")!
lethotp=HOTP(secret: data)!
print(hotp.generate(42)

Supported parameters

Hash Functions

SwiftOTP supports HMAC with SHA1 as specified in RFC 4226, as well as SHA256 and SHA512 added in RFC 6238. MD5 is not supported due to its inability to produce reliable one time passwords.

Digit Length

Both the TOTP and HOTP objects only accept a digit length value between 6 and 8, as specified in RFC 4226. Both objects will return nil if an invalid digit length value is provided.

License

SwiftOTP is available under the MIT license. See the LICENSE file for more info.

Acknowledgements

SwiftOTP depends on the following open-source projects:

Please include the respective licenses in addition to the SwiftOTP license in your project.

Some parts of the password generator code were adapted from the old Google Authenticator source.

About

A Pure Swift library for generating One Time Passwords (OTP)

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all
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var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - croccio/SwiftOTP: A Pure Swift library for generating One Time Passwords (OTP) · GitHub
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Logo SwiftOTP

Build StatusVersionLicensePlatformSwift Version

SwiftOTP is a pure Swift library for generating One Time Passwords (OTP) commonly used for two factor authentication. SwiftOTP supports both HMAC-Based One Time Passwords (HOTP) and Time Based One Time Passwords (TOTP) defined in RFC 4226 and RFC 6238 respectively.

Installation

SwiftOTP is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod'SwiftOTP'

Then run pod install in the project directory to install.

Usage

TOTP (Time-Based One Time Password)

Creation of a TOTP Object:

lettotp=TOTP(secret: data)!

A TOTP Object can be created with the default settings (6 digits, 30sec time interval and using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lettotp=TOTP(secret: data, digits:6, timeInterval:30, algorithm:.sha1)!

Generating TOTP Passwords

After creating a TOTP object, a password can be generated for a point in time, either by using a Date object or a Unix time value using the generate() function

For example, to get a password for the current time using a TOTP object named totp:

totp.generate(time: Date)

Or from Unix time (i.e. seconds elapsed since 00:00 1 Jan 1970):

totp.generate(secondsPast1970:1234567890)

Note: only Int values are accepted by this function.

HOTP (HMAC-Based One Time Password)

In addition to TOTP, SwiftOTP also supports the generation of counter-based HOTP passwords.

Creation of an HOTP Object:

lethotp=HOTP(secret: data)!

A HOTP Object can be created with the default settings (6 digits, using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lethotp=HOTP(secret: data, digits:6, algorithm:.sha1)!

Generating HOTP Passwords

After creating a TOTP object, a password can be generated for a counter value by using the generate() function, for example (where hotp is a HOTP object):

hotp.generate(counter:42)

Base32

Most secret keys for generating one time passwords use Base32 encoding. As such, SwiftOTP includes a Base32 Helper to decode a Base32 string into Data.

For example:

base32DecodeToData("ABCDEFGHIJKLMNOP")!

Or in use:

letdata=base32DecodeToData("ABCDEFGHIJKLMNOP")!
lethotp=HOTP(secret: data)!
print(hotp.generate(42)

Supported parameters

Hash Functions

SwiftOTP supports HMAC with SHA1 as specified in RFC 4226, as well as SHA256 and SHA512 added in RFC 6238. MD5 is not supported due to its inability to produce reliable one time passwords.

Digit Length

Both the TOTP and HOTP objects only accept a digit length value between 6 and 8, as specified in RFC 4226. Both objects will return nil if an invalid digit length value is provided.

License

SwiftOTP is available under the MIT license. See the LICENSE file for more info.

Acknowledgements

SwiftOTP depends on the following open-source projects:

Please include the respective licenses in addition to the SwiftOTP license in your project.

Some parts of the password generator code were adapted from the old Google Authenticator source.

About

A Pure Swift library for generating One Time Passwords (OTP)

Resources

Stars

1 star

Watchers

1 watching

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Packages

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Force GitHub README to respect dark mode (function() { var style = document.createElement('style'); style.textContent = ' .markdown-body { color-scheme: dark light; } .markdown-body pre { background: #161b22 !important; } .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; } .markdown-body table th, .markdown-body table td { border-color: #30363d !important; } .markdown-body img { background: #0d1117; } .markdown-body blockquote { border-left-color: #8b949e; } .markdown-body hr { border-color: #30363d; } '; document.head.appendChild(style); })(); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' GitHub - croccio/SwiftOTP: A Pure Swift library for generating One Time Passwords (OTP) · GitHub
Skip to content

Repository files navigation

Logo SwiftOTP

Build StatusVersionLicensePlatformSwift Version

SwiftOTP is a pure Swift library for generating One Time Passwords (OTP) commonly used for two factor authentication. SwiftOTP supports both HMAC-Based One Time Passwords (HOTP) and Time Based One Time Passwords (TOTP) defined in RFC 4226 and RFC 6238 respectively.

Installation

SwiftOTP is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod'SwiftOTP'

Then run pod install in the project directory to install.

Usage

TOTP (Time-Based One Time Password)

Creation of a TOTP Object:

lettotp=TOTP(secret: data)!

A TOTP Object can be created with the default settings (6 digits, 30sec time interval and using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lettotp=TOTP(secret: data, digits:6, timeInterval:30, algorithm:.sha1)!

Generating TOTP Passwords

After creating a TOTP object, a password can be generated for a point in time, either by using a Date object or a Unix time value using the generate() function

For example, to get a password for the current time using a TOTP object named totp:

totp.generate(time: Date)

Or from Unix time (i.e. seconds elapsed since 00:00 1 Jan 1970):

totp.generate(secondsPast1970:1234567890)

Note: only Int values are accepted by this function.

HOTP (HMAC-Based One Time Password)

In addition to TOTP, SwiftOTP also supports the generation of counter-based HOTP passwords.

Creation of an HOTP Object:

lethotp=HOTP(secret: data)!

A HOTP Object can be created with the default settings (6 digits, using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lethotp=HOTP(secret: data, digits:6, algorithm:.sha1)!

Generating HOTP Passwords

After creating a TOTP object, a password can be generated for a counter value by using the generate() function, for example (where hotp is a HOTP object):

hotp.generate(counter:42)

Base32

Most secret keys for generating one time passwords use Base32 encoding. As such, SwiftOTP includes a Base32 Helper to decode a Base32 string into Data.

For example:

base32DecodeToData("ABCDEFGHIJKLMNOP")!

Or in use:

letdata=base32DecodeToData("ABCDEFGHIJKLMNOP")!
lethotp=HOTP(secret: data)!
print(hotp.generate(42)

Supported parameters

Hash Functions

SwiftOTP supports HMAC with SHA1 as specified in RFC 4226, as well as SHA256 and SHA512 added in RFC 6238. MD5 is not supported due to its inability to produce reliable one time passwords.

Digit Length

Both the TOTP and HOTP objects only accept a digit length value between 6 and 8, as specified in RFC 4226. Both objects will return nil if an invalid digit length value is provided.

License

SwiftOTP is available under the MIT license. See the LICENSE file for more info.

Acknowledgements

SwiftOTP depends on the following open-source projects:

Please include the respective licenses in addition to the SwiftOTP license in your project.

Some parts of the password generator code were adapted from the old Google Authenticator source.

About

A Pure Swift library for generating One Time Passwords (OTP)

Resources

Stars

1 star

Watchers

1 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Highlight search terms from Google/DuckDuckGo/Bing referrer (function() { var ref = document.referrer; var terms = []; if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) { var url = new URL(ref); var q = url.searchParams.get('q') || url.searchParams.get('p'); if (q) { terms = q.split(/\s+/).filter(function(t) { return t.length > 2; }); } } if (terms.length === 0) return; var style = document.createElement('style'); style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }'; document.head.appendChild(style); function highlight(node) { if (node.nodeType === 3) { // text node var text = node.textContent; var found = false; terms.forEach(function(term) { var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' GitHub - croccio/SwiftOTP: A Pure Swift library for generating One Time Passwords (OTP) · GitHub
Skip to content

Repository files navigation

Logo SwiftOTP

Build StatusVersionLicensePlatformSwift Version

SwiftOTP is a pure Swift library for generating One Time Passwords (OTP) commonly used for two factor authentication. SwiftOTP supports both HMAC-Based One Time Passwords (HOTP) and Time Based One Time Passwords (TOTP) defined in RFC 4226 and RFC 6238 respectively.

Installation

SwiftOTP is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod'SwiftOTP'

Then run pod install in the project directory to install.

Usage

TOTP (Time-Based One Time Password)

Creation of a TOTP Object:

lettotp=TOTP(secret: data)!

A TOTP Object can be created with the default settings (6 digits, 30sec time interval and using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lettotp=TOTP(secret: data, digits:6, timeInterval:30, algorithm:.sha1)!

Generating TOTP Passwords

After creating a TOTP object, a password can be generated for a point in time, either by using a Date object or a Unix time value using the generate() function

For example, to get a password for the current time using a TOTP object named totp:

totp.generate(time: Date)

Or from Unix time (i.e. seconds elapsed since 00:00 1 Jan 1970):

totp.generate(secondsPast1970:1234567890)

Note: only Int values are accepted by this function.

HOTP (HMAC-Based One Time Password)

In addition to TOTP, SwiftOTP also supports the generation of counter-based HOTP passwords.

Creation of an HOTP Object:

lethotp=HOTP(secret: data)!

A HOTP Object can be created with the default settings (6 digits, using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lethotp=HOTP(secret: data, digits:6, algorithm:.sha1)!

Generating HOTP Passwords

After creating a TOTP object, a password can be generated for a counter value by using the generate() function, for example (where hotp is a HOTP object):

hotp.generate(counter:42)

Base32

Most secret keys for generating one time passwords use Base32 encoding. As such, SwiftOTP includes a Base32 Helper to decode a Base32 string into Data.

For example:

base32DecodeToData("ABCDEFGHIJKLMNOP")!

Or in use:

letdata=base32DecodeToData("ABCDEFGHIJKLMNOP")!
lethotp=HOTP(secret: data)!
print(hotp.generate(42)

Supported parameters

Hash Functions

SwiftOTP supports HMAC with SHA1 as specified in RFC 4226, as well as SHA256 and SHA512 added in RFC 6238. MD5 is not supported due to its inability to produce reliable one time passwords.

Digit Length

Both the TOTP and HOTP objects only accept a digit length value between 6 and 8, as specified in RFC 4226. Both objects will return nil if an invalid digit length value is provided.

License

SwiftOTP is available under the MIT license. See the LICENSE file for more info.

Acknowledgements

SwiftOTP depends on the following open-source projects:

Please include the respective licenses in addition to the SwiftOTP license in your project.

Some parts of the password generator code were adapted from the old Google Authenticator source.

About

A Pure Swift library for generating One Time Passwords (OTP)

Resources

Stars

1 star

Watchers

1 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ' GitHub - croccio/SwiftOTP: A Pure Swift library for generating One Time Passwords (OTP) · GitHub
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Logo SwiftOTP

Build StatusVersionLicensePlatformSwift Version

SwiftOTP is a pure Swift library for generating One Time Passwords (OTP) commonly used for two factor authentication. SwiftOTP supports both HMAC-Based One Time Passwords (HOTP) and Time Based One Time Passwords (TOTP) defined in RFC 4226 and RFC 6238 respectively.

Installation

SwiftOTP is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod'SwiftOTP'

Then run pod install in the project directory to install.

Usage

TOTP (Time-Based One Time Password)

Creation of a TOTP Object:

lettotp=TOTP(secret: data)!

A TOTP Object can be created with the default settings (6 digits, 30sec time interval and using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lettotp=TOTP(secret: data, digits:6, timeInterval:30, algorithm:.sha1)!

Generating TOTP Passwords

After creating a TOTP object, a password can be generated for a point in time, either by using a Date object or a Unix time value using the generate() function

For example, to get a password for the current time using a TOTP object named totp:

totp.generate(time: Date)

Or from Unix time (i.e. seconds elapsed since 00:00 1 Jan 1970):

totp.generate(secondsPast1970:1234567890)

Note: only Int values are accepted by this function.

HOTP (HMAC-Based One Time Password)

In addition to TOTP, SwiftOTP also supports the generation of counter-based HOTP passwords.

Creation of an HOTP Object:

lethotp=HOTP(secret: data)!

A HOTP Object can be created with the default settings (6 digits, using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lethotp=HOTP(secret: data, digits:6, algorithm:.sha1)!

Generating HOTP Passwords

After creating a TOTP object, a password can be generated for a counter value by using the generate() function, for example (where hotp is a HOTP object):

hotp.generate(counter:42)

Base32

Most secret keys for generating one time passwords use Base32 encoding. As such, SwiftOTP includes a Base32 Helper to decode a Base32 string into Data.

For example:

base32DecodeToData("ABCDEFGHIJKLMNOP")!

Or in use:

letdata=base32DecodeToData("ABCDEFGHIJKLMNOP")!
lethotp=HOTP(secret: data)!
print(hotp.generate(42)

Supported parameters

Hash Functions

SwiftOTP supports HMAC with SHA1 as specified in RFC 4226, as well as SHA256 and SHA512 added in RFC 6238. MD5 is not supported due to its inability to produce reliable one time passwords.

Digit Length

Both the TOTP and HOTP objects only accept a digit length value between 6 and 8, as specified in RFC 4226. Both objects will return nil if an invalid digit length value is provided.

License

SwiftOTP is available under the MIT license. See the LICENSE file for more info.

Acknowledgements

SwiftOTP depends on the following open-source projects:

Please include the respective licenses in addition to the SwiftOTP license in your project.

Some parts of the password generator code were adapted from the old Google Authenticator source.

About

A Pure Swift library for generating One Time Passwords (OTP)

Resources

Stars

1 star

Watchers

1 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' GitHub - croccio/SwiftOTP: A Pure Swift library for generating One Time Passwords (OTP) · GitHub
Skip to content

Repository files navigation

Logo SwiftOTP

Build StatusVersionLicensePlatformSwift Version

SwiftOTP is a pure Swift library for generating One Time Passwords (OTP) commonly used for two factor authentication. SwiftOTP supports both HMAC-Based One Time Passwords (HOTP) and Time Based One Time Passwords (TOTP) defined in RFC 4226 and RFC 6238 respectively.

Installation

SwiftOTP is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod'SwiftOTP'

Then run pod install in the project directory to install.

Usage

TOTP (Time-Based One Time Password)

Creation of a TOTP Object:

lettotp=TOTP(secret: data)!

A TOTP Object can be created with the default settings (6 digits, 30sec time interval and using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lettotp=TOTP(secret: data, digits:6, timeInterval:30, algorithm:.sha1)!

Generating TOTP Passwords

After creating a TOTP object, a password can be generated for a point in time, either by using a Date object or a Unix time value using the generate() function

For example, to get a password for the current time using a TOTP object named totp:

totp.generate(time: Date)

Or from Unix time (i.e. seconds elapsed since 00:00 1 Jan 1970):

totp.generate(secondsPast1970:1234567890)

Note: only Int values are accepted by this function.

HOTP (HMAC-Based One Time Password)

In addition to TOTP, SwiftOTP also supports the generation of counter-based HOTP passwords.

Creation of an HOTP Object:

lethotp=HOTP(secret: data)!

A HOTP Object can be created with the default settings (6 digits, using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lethotp=HOTP(secret: data, digits:6, algorithm:.sha1)!

Generating HOTP Passwords

After creating a TOTP object, a password can be generated for a counter value by using the generate() function, for example (where hotp is a HOTP object):

hotp.generate(counter:42)

Base32

Most secret keys for generating one time passwords use Base32 encoding. As such, SwiftOTP includes a Base32 Helper to decode a Base32 string into Data.

For example:

base32DecodeToData("ABCDEFGHIJKLMNOP")!

Or in use:

letdata=base32DecodeToData("ABCDEFGHIJKLMNOP")!
lethotp=HOTP(secret: data)!
print(hotp.generate(42)

Supported parameters

Hash Functions

SwiftOTP supports HMAC with SHA1 as specified in RFC 4226, as well as SHA256 and SHA512 added in RFC 6238. MD5 is not supported due to its inability to produce reliable one time passwords.

Digit Length

Both the TOTP and HOTP objects only accept a digit length value between 6 and 8, as specified in RFC 4226. Both objects will return nil if an invalid digit length value is provided.

License

SwiftOTP is available under the MIT license. See the LICENSE file for more info.

Acknowledgements

SwiftOTP depends on the following open-source projects:

Please include the respective licenses in addition to the SwiftOTP license in your project.

Some parts of the password generator code were adapted from the old Google Authenticator source.

About

A Pure Swift library for generating One Time Passwords (OTP)

Resources

Stars

1 star

Watchers

1 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' GitHub - croccio/SwiftOTP: A Pure Swift library for generating One Time Passwords (OTP) · GitHub
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Logo SwiftOTP

Build StatusVersionLicensePlatformSwift Version

SwiftOTP is a pure Swift library for generating One Time Passwords (OTP) commonly used for two factor authentication. SwiftOTP supports both HMAC-Based One Time Passwords (HOTP) and Time Based One Time Passwords (TOTP) defined in RFC 4226 and RFC 6238 respectively.

Installation

SwiftOTP is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod'SwiftOTP'

Then run pod install in the project directory to install.

Usage

TOTP (Time-Based One Time Password)

Creation of a TOTP Object:

lettotp=TOTP(secret: data)!

A TOTP Object can be created with the default settings (6 digits, 30sec time interval and using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lettotp=TOTP(secret: data, digits:6, timeInterval:30, algorithm:.sha1)!

Generating TOTP Passwords

After creating a TOTP object, a password can be generated for a point in time, either by using a Date object or a Unix time value using the generate() function

For example, to get a password for the current time using a TOTP object named totp:

totp.generate(time: Date)

Or from Unix time (i.e. seconds elapsed since 00:00 1 Jan 1970):

totp.generate(secondsPast1970:1234567890)

Note: only Int values are accepted by this function.

HOTP (HMAC-Based One Time Password)

In addition to TOTP, SwiftOTP also supports the generation of counter-based HOTP passwords.

Creation of an HOTP Object:

lethotp=HOTP(secret: data)!

A HOTP Object can be created with the default settings (6 digits, using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lethotp=HOTP(secret: data, digits:6, algorithm:.sha1)!

Generating HOTP Passwords

After creating a TOTP object, a password can be generated for a counter value by using the generate() function, for example (where hotp is a HOTP object):

hotp.generate(counter:42)

Base32

Most secret keys for generating one time passwords use Base32 encoding. As such, SwiftOTP includes a Base32 Helper to decode a Base32 string into Data.

For example:

base32DecodeToData("ABCDEFGHIJKLMNOP")!

Or in use:

letdata=base32DecodeToData("ABCDEFGHIJKLMNOP")!
lethotp=HOTP(secret: data)!
print(hotp.generate(42)

Supported parameters

Hash Functions

SwiftOTP supports HMAC with SHA1 as specified in RFC 4226, as well as SHA256 and SHA512 added in RFC 6238. MD5 is not supported due to its inability to produce reliable one time passwords.

Digit Length

Both the TOTP and HOTP objects only accept a digit length value between 6 and 8, as specified in RFC 4226. Both objects will return nil if an invalid digit length value is provided.

License

SwiftOTP is available under the MIT license. See the LICENSE file for more info.

Acknowledgements

SwiftOTP depends on the following open-source projects:

Please include the respective licenses in addition to the SwiftOTP license in your project.

Some parts of the password generator code were adapted from the old Google Authenticator source.

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A Pure Swift library for generating One Time Passwords (OTP)

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Logo SwiftOTP

Build StatusVersionLicensePlatformSwift Version

SwiftOTP is a pure Swift library for generating One Time Passwords (OTP) commonly used for two factor authentication. SwiftOTP supports both HMAC-Based One Time Passwords (HOTP) and Time Based One Time Passwords (TOTP) defined in RFC 4226 and RFC 6238 respectively.

Installation

SwiftOTP is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod'SwiftOTP'

Then run pod install in the project directory to install.

Usage

TOTP (Time-Based One Time Password)

Creation of a TOTP Object:

lettotp=TOTP(secret: data)!

A TOTP Object can be created with the default settings (6 digits, 30sec time interval and using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lettotp=TOTP(secret: data, digits:6, timeInterval:30, algorithm:.sha1)!

Generating TOTP Passwords

After creating a TOTP object, a password can be generated for a point in time, either by using a Date object or a Unix time value using the generate() function

For example, to get a password for the current time using a TOTP object named totp:

totp.generate(time: Date)

Or from Unix time (i.e. seconds elapsed since 00:00 1 Jan 1970):

totp.generate(secondsPast1970:1234567890)

Note: only Int values are accepted by this function.

HOTP (HMAC-Based One Time Password)

In addition to TOTP, SwiftOTP also supports the generation of counter-based HOTP passwords.

Creation of an HOTP Object:

lethotp=HOTP(secret: data)!

A HOTP Object can be created with the default settings (6 digits, using HMAC-SHA-1) as shown above, or the individual parameters can be set as shown below:

lethotp=HOTP(secret: data, digits:6, algorithm:.sha1)!

Generating HOTP Passwords

After creating a TOTP object, a password can be generated for a counter value by using the generate() function, for example (where hotp is a HOTP object):

hotp.generate(counter:42)

Base32

Most secret keys for generating one time passwords use Base32 encoding. As such, SwiftOTP includes a Base32 Helper to decode a Base32 string into Data.

For example:

base32DecodeToData("ABCDEFGHIJKLMNOP")!

Or in use:

letdata=base32DecodeToData("ABCDEFGHIJKLMNOP")!
lethotp=HOTP(secret: data)!
print(hotp.generate(42)

Supported parameters

Hash Functions

SwiftOTP supports HMAC with SHA1 as specified in RFC 4226, as well as SHA256 and SHA512 added in RFC 6238. MD5 is not supported due to its inability to produce reliable one time passwords.

Digit Length

Both the TOTP and HOTP objects only accept a digit length value between 6 and 8, as specified in RFC 4226. Both objects will return nil if an invalid digit length value is provided.

License

SwiftOTP is available under the MIT license. See the LICENSE file for more info.

Acknowledgements

SwiftOTP depends on the following open-source projects:

Please include the respective licenses in addition to the SwiftOTP license in your project.

Some parts of the password generator code were adapted from the old Google Authenticator source.

About

A Pure Swift library for generating One Time Passwords (OTP)

Resources

Stars

1 star

Watchers

1 watching

Forks

Releases

Packages

Contributors

Languages