PU - Public Key
PK - Private Key
SK - Secret Key
SID - Session ID
P - Payload
Stanley Wintergreen kepocnhh
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| # key | |
| openssl rand -hex 32 | |
| # iv | |
| openssl rand -hex 16 | |
| openssl enc -aes-256-cbc -P | |
| # salt=C0FDB84CFB4ED88F | |
| # key=1D5659F237383B18E22169C06C88DD452C61285D2D154ECCBE781A187DE5521D | |
| # iv =A85A73961775FEC214ECC7155B139D70 |
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| #!/usr/local/bin/bash | |
| if test $# -ne 2; then | |
| echo "Script needs for 2 arguments but actual $#!"; exit 12; fi | |
| SRC="$1" | |
| DST="$2" | |
| if [[ ! -d "$SRC" ]]; then echo "SRC: $SRC is not a dir!"; exit 1; fi | |
| if [[ ! -d "$DST" ]]; then echo "DST: $DST is not a dir!"; exit 1; fi |
kepocnhh
/ bit_shifting.kt
Last active
July 17, 2024 19:05
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| fun toInt(b1: Byte, b2: Byte, b3: Byte, b4: Byte): Int { | |
| return b1.toInt().and(0xff).shl(8 * 3) | |
| .or(b2.toInt().and(0xff).shl(8 * 2)) | |
| .or(b3.toInt().and(0xff).shl(8 * 1)) | |
| .or(b4.toInt().and(0xff)) | |
| } | |
| // 0 1 2 3 | |
| // 01234567 01234567 01234567 01234567 |
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| #!/usr/local/bin/bash | |
| # d=256 | |
| d=512 | |
| g="$(((RANDOM % d) + 1))" | |
| p="$(((RANDOM % d) + 1))" | |
| echo '' | |
| echo 'public:' | |
| echo "g = $g" |
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| #!/usr/local/bin/bash | |
| echo 'Enter service name (default is common):' | |
| read SERVICE_NAME || exit 1 | |
| if test -z "$SERVICE_NAME"; then | |
| SERVICE_NAME='common'; fi | |
| echo 'Enter account name:' | |
| read ACCOUNT_NAME || exit 1 |
kepocnhh
/ osx_security_sample_tk.sh
Last active
October 14, 2023 16:40
OS X security sample to keychain.
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| KEYCHAIN='keychain_baz' | |
| # https://www.unix.com/man-page/osx/1/security/ | |
| security delete-keychain "$KEYCHAIN" | |
| security create-keychain -P "$KEYCHAIN" | |
| if test $? -ne 0; then | |
| echo 'Create keychain error!'; exit 1; fi | |
| SERVICE_NAME='service_foo' |
kepocnhh
/ osx_security_sample_ww.sh
Created
October 14, 2023 16:29
OS X security sample with warning.
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| SERVICE_NAME='service_foo' | |
| ACCOUNT_NAME='account_bar' | |
| PASSWORD_VALUE='password_bar' | |
| security delete-generic-password -s "$SERVICE_NAME" -a "$ACCOUNT_NAME" &> /dev/null | |
| # Add a generic password item to the default keychain. | |
| security add-generic-password -s "$SERVICE_NAME" -a "$ACCOUNT_NAME" -w "$PASSWORD_VALUE" -T '' | |
| if test $? -ne 0; then |
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| SERVICE_NAME='service_foo' | |
| ACCOUNT_NAME='account_bar' | |
| PASSWORD_VALUE='password_bar' | |
| security delete-generic-password -s "$SERVICE_NAME" -a "$ACCOUNT_NAME" &> /dev/null | |
| # Add a generic password item to the default keychain without warning. | |
| security add-generic-password -s "$SERVICE_NAME" -a "$ACCOUNT_NAME" -w "$PASSWORD_VALUE" | |
| if test $? -ne 0; then |
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| sealed interface ExtraType<T : Any> | |
| object Str : ExtraType<String> | |
| object Int32 : ExtraType<Int> | |
| object Int64 : ExtraType<Long> | |
| private fun <T : Any> Bundle.getOrNull(type: ExtraType<T>, key: String): T? { | |
| if (!containsKey(key)) return null | |
| return when (type) { | |
| Str -> getString(key, null) as T? | |
| Int64 -> getLong(key, -1) as T |
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